Sir John Oldcastle of Martyrs". Oldcastle was also a minor character in the early Elizabethan history play the "Famous Victories of Henry V" (c. 1586?), which is generally thought to have been one of Shakespeare's sources for his plays on Henry IV and Henry V. The genesis of "Sir John Oldcastle" is crucially linked to the fact that when Shakespeare's "Henry IV" plays premiered on stage in 1597–98, the character Sir John Falstaff was called Sir John Oldcastle. This is indicated by abundant external and internal evidence. The change of names, from "Oldcastle" to "Falstaff," is mentioned in seventeenth-century works by Richard James
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 In 1569 John had applied for a coat of arms, the application – subsequently withdrawn – including a vague claim of an ancestor having been honoured by King Henry VII, a draft of which application (with parenthetical additions representing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