Admiral Sir John Byng Frewen GCB (28 March 1911 – 1 September 1975) was Commander-in-Chief Naval Home Command.Frewen joined the Royal Navy in 1924. He served in World War II in the Russian Convoys and as Squadron Navigating Officer for Aircraft Carriers in the Pacific. He also served in the Korean War as Commander of HMS Mounts Bay.He was appointed Chief of Staff to the Commander-in-Chief, Home Fleet in 1959 and then became Flag Officer Second in Command at the Far East Station in 1961. He went on to be Vice Chief of the Naval Staff in 1963 and Commander-in-Chief, Home Fleet in 1965. He was then appointed Commander-in-Chief, Portsmouth in 1967. Finally he was appointed the first Commander-in-Chief Naval Home Command (following the merger of the Portsmouth and Plymouth Commands) in 1969. In that capacity he welcomed Sir Alec Rose back to Portsmouth after his single-handed trip around the world. Frewen was also First and Principal Naval Aide-de-Camp to the Queen from 1968 to 1970. He retired in 1970. Wikipedia