John Berkeley (1352–1428) 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 Member (MP) of the Parliament of England for Gloucestershire in February 1388, September 1388 and January 1397, for Somerset in November 1390 and
Berkeley Castle genealogy documentary television series "Who Do You Think You Are?", with American actress Courteney Cox looking into her ancestry. Cox learns that she is a 21-generation direct descendant of Thomas de Berkeley, 3rd Baron Berkeley and 22-generation descendant of de Berkeley’s father-in-law, Roger Mortimer, 1st Earl of March – also learning of their parts in the murder of King Edward II of England at Berkeley Castle in 1327. Two ships of the Royal Navy have been named "Berkeley Castle" after the castle, as has a Great Western locomotive. Berkeley Castle Berkeley Castle ( ; historically sometimes spelt "Berkley Castle" or