Robert Wilson (dramatist) character in the original versions of William Shakespeare's plays "Henry IV, Part 1" and "Henry IV, Part 2". Objections from descendants of the historical John Oldcastle, a Protestant martyr, appears to have been responsible both for the writing of the corrective "Oldcastle" play and the alteration of Oldcastle to Sir John Falstaff in later versions of the "Henry IV" plays. Also, Wilson has been proposed as a possible author of several anonymous Elizabethan plays, including "Fair Em", "The Pedlar's Prophecy", "A Larum for London", "Look About You", "Sir Clyomon and Sir Clamydes", and "A Knack to Know a Knave". As
John Oldcastle John Oldcastle, was Herefordshire's MP during the latter part of the reign of King Richard II. Oldcastle is first mentioned in two separate documents in 1400, first as a plaintiff in a suit regarding the advowson of Almeley church, and again as serving as a knight under Lord Grey of Codnor in a military expedition to Scotland. In the next few years Oldcastle held notable positions in the Welsh campaigns of King Henry IV of England against Owain Glyndŵr, including captaincy first over Builth Castle in Brecknockshire and then over Kidwelly. Oldcastle represented Herefordshire as a "knight of the shire"