Thomas Berkeley, 5th Baron Berkeley Thomas Berkeley, 5th Baron Berkeley Thomas Berkeley, "de jure" 5th Baron Berkeley, (b. 1472 - 22 January 1532) was a British soldier and aristocrat. He was born to Sir Maurice Berkeley, "de jure" 3rd Baron Berkeley, and Isabel Meade, in England. He was the younger brother to Maurice Berkeley, "de jure" 4th Baron Berkeley, and had a younger brother, James, and younger sister, Anne. On 9 September 1513 he fought in the Battle of Flodden and was knighted by the Earl of Surrey, Thomas Howard. He later became Constable of Berkeley Castle on 15 May 1514, and Sheriff of Gloucestershire,
Maurice Berkeley, 3rd Baron Berkeley was disinherited by his elder brother William Berkeley, 1st Marquess of Berkeley, 2nd Baron Berkeley (1426–1492), who died without surviving progeny. As he never therefore possessed Berkeley Castle, he had no claim to the ancient feudal barony of Berkeley, which was dependent on landholdings. It was assumed (according to a very unusual legal rationale) that the barony by writ created in 1412 was also held dependent on the tenure of Berkeley Castle (that is to say it was deemed a feudal barony or barony by tenure), and that it had thereby been forfeited by association, and thus Maurice never assumed