Falstaff them: "let us every one go home, and laugh this sport o'er by a country fire; Sir John and all". Shakespeare originally named Falstaff "John Oldcastle". Lord Cobham, a descendant of the historical John Oldcastle, complained, forcing Shakespeare to change the name. Shakespeare's "Henry IV" plays and "Henry V" adapted and developed the material in an earlier play called "The Famous Victories of Henry V", in which Sir John "Jockey" Oldcastle appears as a dissolute companion of the young Henry. In the published version of "Henry IV, Part 1", Falstaff's name is always unmetrical, suggesting a name change after the
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