The queen of Denmark, Germany's president and other dignitaries from the two countries marked the centennial of Denmark's reunification Sunday, a celebration that was delayed by almost a year due to COVID-19.

Denmark's reunification day is observed to commemorate the events of June 15, 1920, which is when Danish King Christian X ratified a law that brought the South Jutland region back into Denmark. The area had been under German rule for 56 years.

More Images
Denmark's Prince Christian look on, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

The queen of Denmark, Germany's president and other dignitaries from the two countries marked the centennial of Denmark's reunification Sunday, a celebration that was delayed by almost a year due to COVID-19.

Denmark's Queen Margrethe, left,  Crown Prince Frederik, righ and Prince Christian, centre right walk, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

The centennial celebration delayed by the pandemic originally was scheduled for July 2020. On Sunday, Queen Margrethe II and other members of the Danish royal family rose in a horse-drawn carriage in the town of Kolding, traveling in the same place where the queen’s grandfather had in 1920.

Denmark's Queen Margrethe, centre, takes part in celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, centre, takes part in celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, speaks, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, speaks, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe speaks, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe speaks, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Crown Prince Frederik and Prince Christian walk, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Crown Prince Frederik and Prince Christian walk, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, and Prince Christian sit, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, and Prince Christian sit, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, foreground, Crown Prince Frederik and Prince Christian walk, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, foreground, Crown Prince Frederik and Prince Christian walk, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, Crown Prince Frederik and Prince Christian crosses the old border to Germany in a carriage, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, Crown Prince Frederik and Prince Christian crosses the old border to Germany in a carriage, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, walks, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Kongeskansen, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, walks, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Kongeskansen, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, right, sits with Germany's Presidenti Frank-Walter Steinmeier, centre left,  during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, at Kongeskansen, in Dybboel Banke,  Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, right, sits with Germany's Presidenti Frank-Walter Steinmeier, centre left, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, at Kongeskansen, in Dybboel Banke, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Germans know the area in the Jutland peninsula that Prussia controlled during the 19th century as the North Schleswig region. It was part of Germany until after the end of World War I.

Denmark's Prince Christian look on, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Prince Christian look on, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

The centennial celebration delayed by the pandemic originally was scheduled for July 2020. On Sunday, Queen Margrethe II and other members of the Danish royal family rose in a horse-drawn carriage in the town of Kolding, traveling in the same place where the queen’s grandfather had in 1920.

German President Frank-Walter Steinmeier and Danish Prime Minister Mette Frederiksen later attended a church service with their spouses.

The Danish royal house published photos of the celebrations on its Instagram account.

Denmark's Queen Margrethe, left,  Crown Prince Frederik, righ and Prince Christian, centre right walk, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, left, Crown Prince Frederik, righ and Prince Christian, centre right walk, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, centre, takes part in celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, centre, takes part in celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, speaks, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, speaks, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe speaks, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe speaks, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Crown Prince Frederik and Prince Christian walk, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Crown Prince Frederik and Prince Christian walk, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, and Prince Christian sit, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, and Prince Christian sit, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, foreground, Crown Prince Frederik and Prince Christian walk, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, foreground, Crown Prince Frederik and Prince Christian walk, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, Crown Prince Frederik and Prince Christian crosses the old border to Germany in a carriage, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, Crown Prince Frederik and Prince Christian crosses the old border to Germany in a carriage, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Frederikshoej, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, walks, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Kongeskansen, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, walks, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, in Kongeskansen, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, right, sits with Germany's Presidenti Frank-Walter Steinmeier, centre left,  during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, at Kongeskansen, in Dybboel Banke,  Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland.  The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)

Denmark's Queen Margrethe, right, sits with Germany's Presidenti Frank-Walter Steinmeier, centre left, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland, at Kongeskansen, in Dybboel Banke, Denmark, Sunday, June 13, 2021, during celebrations marking the 100th anniversary of the Reunification of Denmark and Southern Jutland. The Danish queen, German president and dignitaries from both the Scandinavian country and Germany marked Sunday the centennial of the 1920 reunification of Denmark in a celebration that was delayed by almost one year due to COVID-19.The reunification day of Denmark refers to June 15, 1920 when Danish King Christian X ratified a law that reunited the South Jutland region into Denmark after the area had been under German rule for 56 years. (Henning BaggerRitzau Scanpix via AP)