John Mowbray, 3rd Duke of Norfolk further been suggested that his comic catchphrase was deliberately intended to invoke Sir John Falstaff, one of Shakespeare's best known characters, for the audience. In Shakespeare's "Henry IV, Part 2", Justice Shallow refers to Falstaff as having once been a page to "Thomas Mowbray, Duke of Norfolk", Mowbray's grandfather. Falstaff is commonly considered to be a fictional representation of either Sir John Oldcastle or Sir John Fastolf—or possibly an amalgamation of the two—both of whom are variously associated with Mowbray. John Mowbray, 3rd Duke of Norfolk John Mowbray, 3rd Duke of Norfolk, KG, Earl Marshal (12 September 1415 – 6
Oldcastle Revolt rise of Lollardy alarmed archbishop Arundel, who unsuccessfully accused Oldcastle of promoting heretical teachings within his estates on several occasions, due to Henry's reluctance to prosecute a close personal friend. By August 1413, Henry grew tired of Oldcastle's insubordination, permitting Arundel to prosecute him. Arundel summoned Oldcastle to appear in the Leeds Castle on 11 September 1413, but Oldcastle ignored the call and retreated to Cooling Castle, his keep. Arundel immediately excommunicated the defendant, ordering him to receive judgement on 23 September. On the same day, Oldcastle was brought to the Tower of London, accusing the Pope of being Antichrist,