The Justiciar of North Wales was a legal office concerned with the government of the three counties in north-west Wales during the medieval period.
Justiciar was a title which had been given to one of the monarch's chief ministers in both England and Scotland.
Following Edward I of England's conquest of North Wales (1277–1283), the counties of Anglesey, Caernarfonshire and Merioneth were created out of the Kingdom of Gwynedd by the Statute of Rhuddlan in 1284 and placed under direct royal control.
[1] Deputy Justiciar to Othon de Grandson was variously his brother in law John de Bonvillars and his brother Guillaume de Grandson.
[5] This article related to the history of Wales is a stub.