Richard de Pulesdon was appointed by Edward I as the first High Sheriff of Caernarvonshire

High Sheriff of Caernarvonshire

This is a list of High Sheriffs of Caernarvonshire.The High Sheriff is the oldest secular office under the Crown. Formerly the High Sheriff was the principal law enforcement officer in the county but over the centuries most of the responsibilities associated with the post have been transferred...

 following the defeat, occupation and dismemberment of the Kingdom of Gwynedd

Kingdom of Gwynedd

Gwynedd was one petty kingdom of several Welsh successor states which emerged in 5th-century post-Roman Britain in the Early Middle Ages, and later evolved into a principality during the High Middle Ages. It was based on the former Brythonic tribal lands of the Ordovices, Gangani, and the...

 in 1284. His tenure came to an end at the height of the rising of Madoc ap Llywelyn in 1295. The hated sheriff was seized and hanged by the Anglesey Welshmen during a sudden raid on the borough of Caernarvon.