Maurice de Berkeley 1243 and, on 14 December 1243, he had livery of his father's lands. He fought in the war in North Wales and in 1264 he joined the Barons against King Henry III. Berkeley died on 4 April 1281 and was buried in St Augustine's Abbey in Bristol. Maurice de Berkeley Sir Maurice de Berkeley "the Resolute" (1218 - 4 April 1281), 5th (feudal) Baron de Berkeley, was an English soldier and rebel, residing at Berkeley Castle in the English county of Gloucestershire. Maurice was born in 1218 to Thomas de Berkeley and Joan de Somery. He married Isabel FitzRoy, the
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