John de Karlell (died 1393) was an English-born cleric, civil servant and judge in fourteenth-century Ireland.
[1] Insulting remarks made by political opponents about William's "low station in life" are evidence that the brothers came from a relatively humble background, a subject on which they are known to have been sensitive, even to the point of bringing legal proceedings against those who disparaged them.
[2] Carlisle Cathedral Both brothers sat in the Irish House of Commons as members for Kilkenny City in the Parliament of 1374 and both served as Barons of the Court of Exchequer (Ireland).
[3] They were hard-working Crown officials with wide-ranging duties, (though William at least made numerous enemies, who worked hard for his removal), and both were well rewarded for their services: John was given a licence to export wheat to France and Portugal, and to "levy profits" while absent from Ireland.
[6] Like many clerics of the time, he was something of a pluralist: he was prebendary of Ferns and Limerick, and became parish priest of Culfeightrin, now Ballycastle, County Antrim in 1389.