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,
Tibbers Castle such as lime. The "Mote de Tibbris" is mentioned in the "Registrum Magni Sigilli" in 1489 and 1541. The interpretation of Tibbers has changed over time, and in the 18th century it was thought to be a Roman fort though it was later understood to be a medieval castle. The name of the castle led to the suggestion that it derived from Tiberius Caesar, however 'Tibbers' comes from the Gaelic word 'Toibar' meaning a well. The earliest recorded excavation at Tibbers Castle took place in 1864, which recovered two coins from the reign of Edward II of England (1307–1327) and