The lack of a reliable Fitzgeffrey pedigree makes it difficult to distinguish John from his family namesakes, but he was probably a son of William Fitzgeffrey of Thurleigh. It is also likely that William of Thurleigh and William Fitzgeffrey of Sandon, Hertfordshire, were one and the same man, although it is not at all clear that the MP was the father of the John Fitzgeffrey of Sandon who died late in Edward IV’s reign.
A follower of Reynold, Lord Grey of Ruthin, Fitzgeffrey participated in his patron’s quarrel with John Cornwall, Lord Fanhope. During the late 1420s and early 1430s, before the quarrel began, he acted as a feoffee for Cornwall and his retainers, William Ludsopp* and William Partsoil of Riseley,
By 1441, Fitzgeffrey’s patron had died, but Fitzgeffrey probably remained attached to the Greys in the person of Grey’s grandson and heir, Edmund, Lord Grey of Ruthin. A year after the violence at Bedford, he witnessed several deeds on behalf of the Ragons, a family long associated with the Greys, and in the mid 1440s he acted as a feoffee of John Enderby.
The evidence for Fitzgeffrey’s estates is incomplete, for want of a surviving will or inquisition post mortem. Notwithstanding the lack of such records, he must have died in the spring of 1460 since the Chancery issued a writ of diem clausit extremum for John Fitzgeffrey of Bedfordshire on 24 May that year.
The MP’s namesake, John Fitzgeffrey of Sandon, lived until 1480. Along with his holdings at Sandon, he also possessed an estate in Bedfordshire, consisting of manors at Clapham and Roxton and a moiety of another at Barford.
