Thomas de Berkeley, 1st Baron Berkeley died at Berkeley Castle on 23 July 1321 and was succeeded in his titles by his eldest son Maurice de Berkeley, 2nd Baron Berkeley. Thomas de Berkeley, 1st Baron Berkeley Thomas de Berkeley, 1st Baron Berkeley (c.1251 – 23 July 1321), "The Wise", feudal baron of Berkeley, of Berkeley Castle in Gloucestershire, England, was a peer, soldier and diplomat. His epithet, and that of each previous and subsequent head of his family, was coined by John Smyth of Nibley (d.1641), steward of the Berkeley estates, the biographer of the family and author of "Lives of the Berkeleys". Thomas de Berkeley
Berkeley Castle Hugh Despenser, the favourite of Edward II. Then in 1327, Edward was deposed by his wife Queen Isabella and her ally Roger Mortimer, and placed in the joint custody of Mortimer’s son-in-law, Thomas de Berkeley, and de Berkeley‘s brother-in-law, John Maltravers. They brought Edward to Berkeley Castle, and held him there for five months from April to September. During that time a band of Edward's supporters attacked, entered the castle and rescued him, only for him to be recaptured soon afterwards. It is possible that his captors then moved him around between several castles to make further rescue more difficult,