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 jest with him at any time." As Katherine Duncan-Jones points out, this is impossible, since Mennes was two years old when John Shakespeare died. She thinks Plume may have been recording an anecdote related by Mennes taken from his father. In the 18th century a tract signed by John Shakespeare, in which he pledged to remain a Catholic in his heart, was found in the rafters of the house on Henley Street. It was seen and described by the scholar Edmond Malone. Although it was subsequently lost, a very similar copy of the formulaic text came to light in the