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
Maurice de Berkeley, 2nd Baron Berkeley his wife he had children including: His second marriage, in about 1316, was to Isabella de Clare, daughter of Gilbert de Clare, 6th Earl of Hertford by his wife Alice de Lusignan. Berkeley was imprisoned by the Despencers in Wallingford Castle in Berkshire (now in Oxfordshire), where he died on 31 May 1326 and was eventually buried in St Augustine's Abbey (now Bristol Cathedral) in Bristol, founded by his ancestor. He was succeeded by his eldest son Thomas de Berkeley, 3rd Baron Berkeley (born c. 1296). Maurice de Berkeley, 2nd Baron Berkeley Maurice de Berkeley, 2nd Baron Berkeley (April 1271