John Oldcastle John Oldcastle Sir John Oldcastle (died 14 December 1417) was an English Lollard leader. Being a friend of Henry V, he long escaped prosecution for heresy. When convicted, he escaped from the Tower of London and then led a rebellion against the King. Eventually, he was captured and executed in London. He formed the basis for William Shakespeare's character John Falstaff, who was originally called John Oldcastle. Oldcastle's date of birth is unknown, although dubious and possibly apocryphal sources place it variously at 1360 or 1378. His father was Richard Oldcastle of Almeley in northwest Herefordshire. His grandfather, also called
John Shakespeare the lord of the manor on behalf of the corporation. In 1569 John had applied for a coat of arms, the application – subsequently withdrawn – including a vague claim of an ancestor having been honoured by King Henry VII, a draft of which application (with parenthetical additions representing amendments to be made in a successive draft) reading: '... John Shakespeare... whose parentes and late antecessors [grandfather] were for there [his] valeant and faithefull service advaunced and rewarded by the most prudent prince king Henry the Seventh of famous memorie, sythence whiche tyme they have continewed... in good reputation and