1. Admiral of the Fleet Terence Thornton Lewin, Baron Lewin was a Royal Navy officer.

1. Admiral of the Fleet Terence Thornton Lewin, Baron Lewin was a Royal Navy officer.
Terence Lewin served in the Second World War and then commanded a destroyer, the Royal yacht, two frigates and an aircraft carrier before achieving higher command.
Terence Lewin went on to be Chief of the Defence Staff during the Falklands War, serving as chief war planner and as Prime Minister Margaret Thatcher's chief advisor during the war.
Terence Lewin was the first Chief of Defence Staff to act as professional head of the Armed Forces rather than just Chairman of the Chiefs of Staff Committee.
Terence Lewin rejoined the staff of HMS Excellent in January 1952 and, having been promoted to commander on 31 December 1952, he joined the staff of the Second Sea Lord at the Admiralty in December 1953.
Terence Lewin was appointed Naval Aide-de-Camp to the Queen on 7 July 1967 and promoted to rear admiral on 7 January 1968, on appointment as Assistant Chief of the Naval Staff before becoming Flag Officer Second in Command Far East Fleet in August 1969.
Terence Lewin was appointed Knight Commander of the Order of the Bath in the 1973 New Year Honours.
Terence Lewin was promoted to full admiral on 1 December 1973, on appointment as Commander-in-Chief Fleet and NATO Commander-in-Chief, Channel and Commander-in-Chief Eastern Atlantic and became Commander-in-Chief Naval Home Command in November 1975 before being advanced to Knight Grand Cross of the Order of the Bath in the 1976 Birthday Honours.
Terence Lewin was appointed First Sea Lord and Chief of Naval Staff on 1 March 1977.
Terence Lewin was the first Chief of Defence Staff to act as professional head of the Armed Forces rather than just Chairman of the Chiefs of Staff Committee.
Terence Lewin was created a life peer, as Baron Lewin, of Greenwich in Greater London in October 1982 on his retirement.
In retirement, Terence Lewin became Chairman of the Trustees of the National Maritime Museum, President of the Society for Nautical Research, a Liveryman of the Skinners' Company and of the Shipwrights' Company and an elder brother of Trinity House.
Terence Lewin's interests included military history: he was an expert on the life of Captain Cook.
Terence Lewin was appointed a Knight Companion of the Order of the Garter in April 1983.
Terence Lewin died at his home at Ufford in Suffolk on 23 January 1999.
In 1944, Terence Lewin married Jane Branch-Evans; they had two sons and a daughter.