§ 1. Madog ab Riryd upon payment of a fine, was received into favour by Richard de Belmis, bishop of London, warden of the Marches, and recognized as heir to the lands of his captive brother Ithel. Maredudd ab Bleddyn held the guardianship of the vacant territory until Owen, the eldest surviving son of Cadwgan, returned from Ireland, when, with King Henry's sanction, upon the promise of a heavy fine and the delivery of hostages, that prince took possession of his uncle Iorwerth's inheritance.

Maredudd ab Bleddyn, thirsting for vindictive justice, sent forth his warriors upon an expedition against Llywarch ab Trahaern. To reach his place of abode, it was necessary for these hostile emissaries to cross the lands of Madog ab Riryd, and hearing on the way that he was near at hand, they laid an ambush for him, seized him, and brought him to Maredudd; who immediately sent for Owen ab Cadwgan and delivered the prisoner into his hands.