Career
Afterwards he fought in the west of England. He paid a large fine to the parliament at the close of the First English Civil War. He killed Henry Compton in a duel at Putney on 13 May 1653, and was tried and found guilty of manslaughter after a long imprisonment, 17 May 1654.
He died of smallpox in February 1655, and was buried at Sudeley Castle.
After William"s death in 1676 the barony came to a kinsman, James, who was English ambassador to Constantinople from 1680 to 1685.