Thomas de Berkeley, 3rd Baron Berkeley was succeeded by Maurice de Berkeley, 4th Baron Berkeley (born 1320, date of death unknown), eldest son and heir from his first marriage. Thomas de Berkeley, 3rd Baron Berkeley Thomas de Berkeley (c. 1293 or 1296 – 27 October 1361), "The Rich", feudal baron of Berkeley, of Berkeley Castle in Gloucestershire, England, was a peer. 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 the eldest son and heir
James Berkeley Berkeley died on 24 June 1327, having been murdered and having suffered the destruction and despoilation of his manors, according to the account by his successor John de Grandisson. Berkeley was buried in Exeter Cathedral, against the north wall of the south ambulatory, where survives his chest tomb. It is devoid of the monumental brass which originally adorned the Purbeck marble ledger stone top, in the form of a demi-effigy of a bishop wearing a mitre, the indent of which is still visible. Following the Reformation the brass was stripped away in 1561 on the orders of the Cathedral authorities.