John Bingham, 7th Earl of Lucan
He was a known gambler and became skilled at backgammon and bridge, and was an early member of the Clermont Club. Lucan's losses often were more than his winnings, yet he left his job at a London-based merchant bank and became a professional gambler. He was known as Lord Bingham from April 1949 until January 1964, during his father's lifetime.