Sir John Oldcastle ("Epistle to Sir Harry Bourchier", c. 1625) and Thomas Fuller ("Worthies of England," 1662). It is also indicated in details in the early texts of Shakespeare's plays. In the quarto text of "Henry IV, Part 2" (1600), one of Falstaff's speech prefixes in Act I, Scene ii is mistakenly left uncorrected, "Old." instead of "Falst." In III,ii,25-6 of the same play, Falstaff is said to have been a "page to Thomas Mowbray, Duke of Norfolk" — which was true of the historical Oldcastle. In "Henry IV, Part 1", I,ii,42, Prince Hal calls Falstaff "my old lad of the castle." Iambic
John Oldcastle in the parliament of 1404, later serving as a justice of the peace, and was High Sheriff of Herefordshire in 1406–07. In 1408 he married Joan, the heiress of Cobham — his third marriage, and her fourth. This resulted in a significant improvement of his fortune and status, as the Cobhams were "one of the most notable families of Kent". The marriage brought Oldcastle a number of manors in Kent, Norfolk, Northamptonshire and Wiltshire, as well as Cooling Castle, and from 1409 until his accusation in 1413 he was summoned to parliament as Lord Cobham. At some point in his