The Annals of Tigernach recorded that: "Cadla Ua Dubthaig came from England from the Son of the Empress, having with him the peace of Ireland, and the kingship thereof, both Foreigner and Gael, to Ruaidhrí Ó Conchobhair, and to every provincial king his province from the king of Ireland, and their tributes to Ruaidhrí."
The Annals of Tigernach state that Cadla Ua Dubthaig arrived in Ireland from England, bringing peace and the kingship of both Foreigners and Gaels to Ruaidhrí Ó Conchobhair. He also granted provinces to each provincial king with their respective tributes to Ruaidhrí.