In a suit for trespass brought in the King’s bench in the mid 1420s by Thomas Poynings, Lord St. John, Cobbehay, one of the defendants, was described as ‘of Bignor, parker’.
It is uncertain at what point in his career Cobbehay entered the service of the lord of the borough which he represented in Parliament, John Arundel, de jure earl of Arundel, but in view of his employment on the former Fitzalan estates it would have been quite natural for him to do so as soon as the young lord took possession of his inheritance in 1429. On 2 June 1434 he obtained royal letters of protection as about to cross to France in the earl’s retinue.
