William de Berkeley, 1st Marquess of Berkeley William de Berkeley, 1st Marquess of Berkeley William de Berkeley, 1st Marquess of Berkeley (1426 – 14 February 1492) was an English peer, given the epithet "The Waste-All" by the family biographer and steward John Smyth of Nibley. He was buried at "St. Augustine's Friars, London" according to one source, but most likely in the Berkeley family foundation of St Augustine's Abbey, Bristol. William of Berkley was born to James Berkeley, 1st Baron Berkeley, and Lady Isabel Mowbray at Berkeley Castle in Berkeley, Gloucestershire, in 1426. His first marriage was in 1466 to Elizabeth West, daughter of Reginald West, 6th
Henry Berkeley, 7th Baron Berkeley The 6th Baron had earlier been married to Mary Hastings, the daughter of George Hastings, 1st Earl of Huntingdon, by Anne Stafford (d. March 1533), daughter of Henry Stafford, 2nd Duke of Buckingham, but had no issue by her. Berkeley was made a Knight of the Bath on 28 September 1553 at the coronation of Mary I. In the following year, Berkeley Castle and other estates were restored to him when the line of male heirs of Henry VII was extinguished. As Simon Adams points out, "in 1487 William, Marquis Berkeley, had granted Berkeley Castle and its related manors to