Margrethe II1940 Born Tue, 16 April 1940 Amalienborg Palace, Copenhagen Details Parents Queen of Denmark Margrethe Alexandrine Þórhildur Ingrid Age: 84 years, 8 months, 5 days father Frederick IX 1899 - 1972 mother Ingrid of Sweden 1910 - 2000 Siblings Sister Benedikte of Denmark 1944 Sister Anne-Marie of Greece 1946