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
Edward II of England castle. As a result of these threats, Edward was moved around to other locations in secret for a period, before returning to permanent custody at the castle in the late summer of 1327. The political situation remained unstable, and new plots appear to have been formed to free him. On 23 September Edward III was informed that his father had died at Berkeley Castle during the night of 21 September. Most historians agree that Edward II did die at Berkeley on that date, although there is a minority view, described below, that he died much later. Edward's death was, as