The fifth child of Prince Andrew of Greece and Denmark and Princess Alice of Battenberg, Philip was born in Corfu, Greece, in June 1921. The youngest of five, Philip's four older sisters all married members of Germany's nobility; one, Cecilie, was killed in a plane crash in 1937 along with her husband, two sons, and mother-in-law. (None of his three living sisters were able to attend his eventual marriage to Elizabeth II because of post-WWII relations between the U.K. and Germany—and because their husbands had connections to the Nazis, specifically.) Prince Philip, aged 1. Getty Images Philip spent most of his early childhood in France, and later the United Kingdom for his schooling, however, as (most of) the Greek royal family fled their home country in 1922 following King Constantine's abdication. In the United Kingdom, he primarily lived at Kensington Palace with his maternal grandmother Princess Victoria, then Victoria Mountbatten, a Dowager Marchioness — Mountbatten being the last name he took on for his marriage (which is why some members of the royal family now use the double-barreled Mountbatten-Windsor last name).