Welsh Marches
Under the Laws in Wales Acts 1535–1542 under Henry VIII, rule by the marcher lords was abolished in 1536. This had the effect of creating a single state and legal jurisdiction, "England and Wales". The powers of the marcher lordships were abolished, and their areas were organised into the new Welsh counties of Denbighshire, Montgomeryshire, Radnorshire, Brecknockshire, Monmouthshire, and Carmarthenshire.