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 before returning him to Berkeley Castle in September. Some commentators have claimed that Edward's escape was actually successful, and that someone else was later murdered in his place. Historical sources record that Edward was murdered there on 21 September 1327. Raphael Holinshed's "Chronicles" (1587 edition), drawing on earlier sources, describes Edward's murder in detail:they [the murderers] came suddenlie one night into the chamber where he laie in bed fast asléepe, and with heauie featherbeds or a table (as some [sources] write) being cast vpon him, they kept him down and withall put into his fundament [i.e., his anus] an horne,