He was educated at Eton , and the Royal Military College , Sandhurst .
He was the son of Thomas William Coke , 4th Earl of Leicester , and Marion Gertrude Trefusis .
son was educated at Eton , and the Royal Military College , Sandhurst .
He was the son of Thomas William Coke , 4th Earl of Leicester , and Marion Gertrude Trefusis .