Christian X of Denmark
Princess Thyra of Denmark (Thyra Louise Caroline Amalie Augusta Elisabeth; 14 March 1880 – 2 November 1945) was a member of the Danish royal family. She was the sixth child and third daughter of King Frederick VIII and Queen Louise of Denmark, and was also the younger sister of King Christian X of Denmark and King Haakon VII of Norway. Princess Thyra remained unmarried and had no children.