Or the kingdom of North Powys, one of the Medieval kingdoms of Wales that briefly existed in the twelfth and thirteenth centuries; its location roughly corresponding with that of the shire county of Denbeighshire, and named Fadog after Madog ap Gruffydd.
Kings of Powys Fadog
Part of the kingdom of Powys until 1160, then;
From 1236, sub-ordinate to Gwynedd
until dismembered by England
Unlike its southern neighbour, Powys Wenwynwyn, Powys Fadog generally supported the princes of Gwynedd in their struggles against the Anglo-Norman kings of England. After 1236 there is recorded a succession of joint kings all of whom allied themselves with the ruling house of Aberffraw and recognised the superior overlordship of Gwynedd.
As supporters of the defeated Llywelyn ap Gruffydd the ruling family were dispossed, and the kingdom of Powys Fadog was carved up into a number of Marcher Lordships and parcelled out to Edward I's.