Complex sentence: Sir Humphrey Trevelyan, Baron Trevelyan (27 November 1905--9 February 1985) was a British statesman and author who served as High Commissioner of South Arabia in 1967, and wrote "The India We Left".
Split into simpler sentences: Sir Humphrey Trevelyan, Baron Trevelyan (27 November 1905--9 February 1985) was a British statesman and author. He served as High Commissioner of South Arabia in 1967, and wrote "The India We Left".