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,
Berkeley Castle Hugh Despenser, the favourite of Edward II. Then in 1327, Edward was deposed by his wife Queen Isabella and her ally Roger Mortimer, and placed in the joint custody of Mortimer’s son-in-law, Thomas de Berkeley, and de Berkeley‘s brother-in-law, John Maltravers. They brought Edward to Berkeley Castle, and held him there for five months from April to September. During that time a band of Edward's supporters attacked, entered the castle and rescued him, only for him to be recaptured soon afterwards. It is possible that his captors then moved him around between several castles to make further rescue more difficult,