In 1132, Máenmaige, the westernmost section of the kingdom, was "plundered by Conchobhar ua Briain, who carried off many cows." He may have attended the conference of Abhall Chethernaigh in his capacity as a vassal, where "Toirdhealbhach Ua Conchobhair and Conchobhar Ua Briain, with the chiefs of the clergy of Connaught and Munster ... [made] a year's peace was made between them."
