Prince Philip, Duke of Edinburgh Athens for a month in mid-1939. At the behest of the Greek king, George II, he returned to Britain in September to resume training for the Royal Navy. He graduated from Dartmouth the next year as the best cadet in his course. During the Second World War, he continued to serve in the British forces, while two of his brothers-in-law, Prince Christoph of Hesse and Berthold, Margrave of Baden, fought on the opposing German side. Philip was appointed as a midshipman in January 1940. He spent four months on the battleship HMS "Ramillies", protecting convoys of the Australian Expeditionary Force
Prince Philip, Duke of Edinburgh sisters were Margarita, Theodora, Cecilie, and Sophie. He was baptised into the Greek Orthodox Church. His godparents were his paternal grandmother Queen Olga of Greece and Alexandros S. Kokotos, Mayor of Corfu. Shortly after Philip's birth, his maternal grandfather, Prince Louis of Battenberg, then known as Louis Mountbatten, Marquess of Milford Haven, died in London. Louis was a naturalised British citizen, who, after a career in the Royal Navy, had renounced his German titles and adopted the surname Mountbatten, an Anglicized version of Battenberg, during the First World War due to Anti-German sentiment in Great Britain. After visiting London for