Sir John Oldcastle O, O!," when his fingertips are singed with candles — which of course works for "Oldcastle" but not "Falstaff." There is also the "castle" reference in IV,v,6 of the same play. The name Falstaff was derived from Sir John Fastolf, who was also a historical person—allegedly a greedy and grasping individual, who had a (probably undeserved) reputation for cowardice at the Battle of Patay in 1429. Fastolf, however, died without descendants, making him safe for a playwright's use. He had already appeared as a cowardly knight in Henry VI, part 1. The name change and the Epilogue disclaimer were required,
John Oldcastle of Edward Charleton, 5th Baron Cherleton, Ieuan and Sir Gruffudd Vychan, sons of Gruffudd ap Ieuan, being two of them. Oldcastle who was "sore wounded ere he would be taken", was brought to London in a horse-litter. The reward for his capture was awarded to Baron Cherleton, but he died before receiving it, though a portion was paid to his widow in 1422. On 14 December he was formally condemned, on the record of his previous conviction, and that same day was hanged in St Giles's Fields, and burnt "gallows and all". It is not clear whether he was burnt