Fiennes Neil Wykeham Cornwallis, 3rd Baron Cornwallis, OBE, DL (29 June 1921 – 6 March 2010) was a British peer. He was the younger child, and the only son, of Wykeham Cornwallis, 2nd Baron Cornwallis and Cecily Etha Mary (née Walker). He had an elder sister, Rosamond Patricia Susan Anne Cornwallis (15 May 1918 – 3 September 1960).
He attended Eton College. Upon the death of his father in 1982, he succeeded him as the 3rd Baron Cornwallis.
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Biography
During World War II, Lord Cornwallis served with the Coldstream Guards between 1940 – 1944 when he was invalided out of the army. He was also a very senior Freemason, and served as Pro Grand Master of the United Grand Lodge of England from 1982 to 1992, having previously been Deputy Grand Master, and Pro First Grand Principal of the Supreme Grand Chapter of England and Wales from 1982 to 1992, having previously been Second Grand Principal.
He had been a stamp collector since his youth. His specialised collections of Australia, Gambia, Gibraltar, and Malta stamps were sold in 2011. He was a fellow of the Royal Philatelic Society London from 1988 and a member of the Royal Tunbridge Wells Philatelic Society.
Family life
Lord Cornwallis married three times. His first wife was Judith Lacy (née Scott), daughter of Lt.-Col. Geffrey Lacy Scott. They married on 17 October 1942 and were divorced in 1948. They had two children:


