In which period the father of Queen Anne-Marie reign Denmark?
Princess Benedikte of Denmark:  She is the younger sister of the reigning Queen of Denmark, Margrethe II, and the older sister of Queen Anne-Marie of Greece. Frederick IX of Denmark: Frederick IX (Christian Frederik Franz Michael Carl Valdemar Georg; 11 March 1899 – 14 January 1972) was King of Denmark from 1947 to 1972.
i don't know