 The Dinefwr dynasty would rule in Deheubarth until their conquest by the Anglo-Normans in the 13th century.This branch would compete with House Aberffraw for supremacy and influence in Wales throughout the 10th, 11th, and 12th century, with Powys variously ruled between them.Eventually, a cadet branch of Dinefwr would establish itself in Powys by the mid 11th century, designated Mathrafal after the castle there.