Thomas de Berkeley, 1st Baron Berkeley Thomas de Berkeley, 1st Baron Berkeley Thomas de Berkeley, 1st Baron Berkeley (c.1251 – 23 July 1321), "The Wise", feudal baron of Berkeley, of Berkeley Castle in Gloucestershire, England, was a peer, soldier and diplomat. 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". Thomas de Berkeley was born around 1251 at Berkeley Castle in Gloucestershire, the son of Sir Maurice de Berkeley, feudal baron of Berkeley, by his wife Isabel
William Berkeley, 1st Earl FitzHardinge petitioner's claim was not made out. William received Berkeley Castle and the other estates by will, and on 2 July, after the adverse decision of the Lords Committee, he claimed a writ of summons as a Baron as Baron by tenure of Berkeley Castle. The claim was fully laid before the Committee for Privileges in 1828 and 1829, but the Lords gave no judgement on the case. The eldest son born after the 1797 Lambeth marriage of the fifth Earl, Thomas Moreton FitzHardinge Berkeley, became on the Earl's death in 1810 "de jure" 6th Earl of Berkeley — however, he