Muirgius mac Tommaltaig

Muirgius mac Tommaltaig (died 815) was a King of Connacht from the Uí Briúin branch of the Connachta. He was the great-grandson of Indrechtach mac Muiredaig Muillethan (died 723), a previous king. The death of his father Tommaltach mac Murgail (died 774) is recorded in the annals where he is called king of Mag nAi. Muirgius was of the Síl Muiredaig sept of the Uí Briúin. He reigned from 792 to 815. Struggle for the throne The annals state that his reign began after Battle of Sruth Cluana Argai (Cloonargid, Co. Roscommon) in 792 when he defeated Cináed mac Artgail (d. 792), of the Síl Cathail sept, who was slain. In 793 we find him imposing the Law of Saint Commán of Roscommon in conjunction with abbot Aildobur (d. 800) upon the three Connachta at Cruachu. Another important battle in 792 was the battle of Ard Maiccrime in County Sligo, where the Ui Ailello were delivered their death blow. Among the slain were Cathmug mac Flaithbertaig of the Cenél Coirpri and Cormac son of Dub dá Crích of the Uí Briúin Bréifne. The Annals of the Four Masters states that Muirgius was the victor in this battle also. The Ui Briun profited by the decline of the Ui Ailello and a branch of the Sil Muiredaig later occupied Mag Luirg.