Thomas de Berkeley, 5th Baron Berkeley 1417 he enfeoffed at Berkeley Castle, shortly before his death, several feoffees to hold all his lands in trust, due to the fact he had no male children as his heirs and that the course of succession then seemed unclear. The catalogue entry made by the British Museum librarian Isaac Jeaves for charter number 581 preserved in the muniments at Berkeley Castle records: The great City of London townhouse of the Berkeleys, known as "Berkeley's Inn", was at Puddle Dock by Baynard's Castle, close to the Blackfriars Monastery. Thomas FitzNicholl, one of the witnesses, was many times MP for Gloucestershire,
William de Berkeley, 1st Marquess of Berkeley as having brought shame on the noble House of Berkeley by marrying beneath his status Isabel Mead, daughter of Philip Mead of Wraxall, an alderman and mayor of Bristol in 1459, 1462 and 1469. In order to achieve this, the castle, lands and lordships composing the Barony of Berkeley he settled on King Henry VII and his heirs male, failing which to descend to his own rightful heirs. Thus, in 1553 on the death of King Edward VI, the unmarried grandson of Henry VII, the Berkeley inheritance returned to the family. Therefore, on the death of the 1st Marquis, only