Prince Philip, Duke of Edinburgh chairman of The Duke of Edinburgh's Award for people aged 14 to 24. He is the longest-serving consort of a reigning British monarch and the oldest-ever male member of the British royal family. Philip retired from his royal duties on 2 August 2017, at the age of 96, after having completed 22,219 solo engagements since 1952. Prince Philip of Greece and Denmark was born in Mon Repos on the Greek island of Corfu on 10 June 1921, the only son and fifth and final child of Prince Andrew of Greece and Denmark and Princess Alice of Battenberg. Philip's four elder
Prince Christoph of Hesse the sister of the future Prince Philip, Duke of Edinburgh. They had five children: Prince Christoph of Hesse Christoph Ernst August of Hesse (Frankfurt, 14 May 1901 – Apennine Mountains near Forlì, 7 October 1943) was the fifth son of Prince Frederick Charles of Hesse and Princess Margaret of Prussia. He was a German SS officer killed in a plane crash during World War II. He was a brother-in-law of Prince Philip, the consort of Queen Elizabeth II. Born in Frankfurt, Prince Christoph was a great-grandson of Queen Victoria and Prince Albert of Saxe-Coburg and Gotha through their eldest daughter