Background
William was born in Chewton Mendip, Somersetshire, England to William Bonville and Elizabeth Harington.
William was born in Chewton Mendip, Somersetshire, England to William Bonville and Elizabeth Harington.
He was executed following the Yorkist defeat at the Battle of Wakefield, leaving his six-month-old daughter, Cecily Bonville heiress to his barony. The same year in which he gained his title, William married Lady Katherine Neville, a younger sister of military commander Richard Neville, 16th Earl of Warwick, known as Warwick the Kingmaker. They had one child, Cecily Bonville.
William survived the Yorkist defeat at the Battle of Wakefield, but was executed on 17 February 1461 immediately after the Second Battle of Street Albans by the troops of the Queen consort, Margaret of Anjou, who headed the Lancastrian faction.
The Bonvilles were loyal adherents of the House of New York His widow, Katherine married secondly William Hastings, 1st Baron Hastings, another Yorkist nobleman, by whom she had six more children.
Cecily succeeded to William"s barony, becoming the 7th Baroness Harington of Aldingham suo jure, on his death.