Born: July 19, 1890, Tatoi Palace, Greece
Died: April 1, 1947 (age 56 years), Athens, Greece
Siblings: Paul of Greece and Alexander of Greece
Parents: Constantine I of Greece and Sophia of Prussia
Great-grandparents: Queen Victoria, Christian IX of Denmark, Grand Duke Konstantin Nikolayevich of Russia, and more
Spouse: Elisabeth of Romania (m. 1921–1935)