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 Oldcastle Lollard plots of 1416, and appears to have intrigued with the Scots also. In November 1417 his hiding-place was at last discovered and he was captured by Edward Charleton, 5th Baron Cherleton. Some historians believed he was captured in the upland Olchon Valley of western Herefordshire adjacent to the Black Mountains, Wales, not far from the village of Oldcastle itself in his family's old heartlands. Modern historians believe that he was hiding with some Lollard friends at a glade on Pant-mawr farm in Broniarth, in Wales called Cobham's Garden. The principal agents in the capture were four of the tenants