John Weever of a religious tone, "The Mirror of Martyrs" and "An Agnus Dei". "The Mirror of Martyrs or The Life and Death of ... Sir John Oldcastle" may have been part of a backlash. In his preface Weever calls it the "first trew Oldcastle", perhaps on account of the fact that Shakespeare's character Falstaff first appeared as "Sir John Oldcastle". Weever's work is influenced by John Bale's 1544 biography of Oldcastle, which presents him as a proto-Protestant martyr. In the fourth stanza of this long poem, in which Sir John is his own panegyrist, occurs a reminiscence of Shakespeare's "Julius Caesar"
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