He married Frances Moore (d. 5 January 1662), daughter of Sir Edward More.
William and Frances had five children; His eldest son William died young and childless, and he was succeeded by his grandson William, son of Edward.
William was a Cavalier and a Catholic, and suffered heavily due to this.
Stourhead, his home, was at one point garrisoned for the King and then, in September 1644, was ravaged by General Ludlow.
This biography of a baron or baroness in the Peerage of England is a stub.