John Berkeley (1352–1428) 1394, for Wiltshire in 1402 and Hampshire in 1406. He married 3 times, but had issue only by his third wife, Elizabeth Betteshorne. John Berkeley (1352–1428) Sir John Berkeley (1352–1428), of Beverston Castle, Gloucestershire was an English politician. He was the son of Thomas de Berkeley, 3rd Baron Berkeley of Berkeley Castle and Katherine Clivedon. He was knighted before 1383. He was appointed High Sheriff of Somerset and Dorset for 1390–91 and 1394–95, High Sheriff of Gloucestershire for 1392–93, 1397–98 and 1414–15, High Sheriff of Hampshire for 1402–03 and 1406–07, and High Sheriff of Wiltshire for 1410–11. He was a
Berkeley family docent and genealogist at the Berkeley Castle listed the Barclay clan as also descending from the de Berkeley clan through the matriarchal line Alice De Berkeley -- the woman who married Robert Fitzharding and restored the family's name. Additionally, historians on Scottish clans and surnames point out that the Barclay clan spelling moves into the Berkeley (pronounced Bar-Clay) spelling. This descends from Sir Maurice Berkeley (by 1514–81), a politician who rose rapidly in the Tudor court. He came from the Berkeleys of Stoke Gifford, a cadet branch of the main Berkeley family, as a descendant of Sir Maurice de Berkeley