statute of Rhuddlan
Sometimes known as the statute of Wales, this was in fact a royal ordinance, not issued by Parliament. It was intended to settle the government of Wales after the execution of Dafydd ap Gruffydd in 1283. English criminal law was to be introduced, but Welsh custom and law were to operate in civil proceedings. Six sheriffdoms were established in Anglesey, Caernarfon, Merioneth, Flint, Carmarthen, and Cardiganshire.