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,
Oldcastle, County Meath of the Charles II courtier, Sir Anthomy Jackson II, of Killingswold Grove, East Yorkshire, England) of Eccleston, Lancashire, England who died in nearby County Cavan after 1666. Isaac was an early Quaker in Ireland, as was his father. He moved to Ballitore, County Kildare, where he married and raised a large family, mostly all of whom emigrated with their parents to Chester County, Pennsylvania, USA in 1725. Oldcastle suffered quite badly during the Great Famine and subsequent emigration. Owing to the continuation of a Gaelic way of life in the north of the county, Oldcastle suffered far more than the