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
Castle Hill, Mere the hill. At the same time the village was expanded into a planned town with an unofficial market. The castle was renovated in 1300, possibly in response to the threat of rebellion in England at the time. Richard's son Edmund inherited the property, but on his death it was taken back by the Crown. Edward II gave it to his royal favourite, Piers Gaveston, whom he made Earl of Cornwall. Edward II and Gaveston fell from power in 1327 and John, Edward's second son, took possession as the new Earl of Cornwall. Edward III then reacquired the castle, which became