The name Norroy is derived from the Old French nort roy meaning 'north king'.
Ulster King of Arms was not part of the College of Arms and did not fall under the jurisdiction of the Earl Marshal, being the heraldic authority for the Kingdom of Ireland (the jurisdiction of the College of Arms being the Kingdom of England and Lord Lyon's Office that of the Kingdom of Scotland).
Ulster was Registrar and King of Arms of the Order of St Patrick.
They are blazoned: Quarterly Argent and Or a Cross Gules on a Chief per pale Azure and Gules a Lion passant guardant Or crowned with an open Crown between a Fleur-de-lis and a Harp Or.
The current Norroy and Ulster King of Arms is Clive Cheesman who was appointed to the office on 14 November 2024.