Prince Philip – 97

Prince Philip, Duke of Edinburgh, is married to Queen Elizabeth II though he is not a King in his own right but a consort. Born in Greece, Philip was educated in Europe and in 1939, at 18, he enlisted in the British Royal Navy. He distinguished himself in the Pacific and Mediterranean Fleets, as he also corresponded with Princess Elizabeth, who was 13 when they met. King George Vi gave Philip permission to marry Elizabeth, after the war, while he abandoned his Danish and Greek royal titles before their betrothal. The couple has four children – Princess Anne and Princes Charles, Andrew, and Edward. He went into retirement from his Royal duties in 2017.