Thomas de Berkeley, 5th Baron Berkeley Thomas de Berkeley, 5th Baron Berkeley Thomas de Berkeley, 5th Baron Berkeley (5 January 1352/53 – 13 July 1417), "The Magnificent", of Berkeley Castle and of Wotton-under-Edge in Gloucestershire, was an English peer and an admiral. 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". He was born at Berkeley Castle in Gloucestershire, the son and heir of Maurice de Berkeley, 4th Baron Berkeley by his wife Elizabeth le Despencer. In
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,