Ua Fáeláin, Máel-Sechlainn (fl. c.1173), king of the Déisi Muman, belonged to a line of the Déisi traced to Fáelán (d. 966), ruler of a petty kingdom which leaves its name on the two baronies of Decies, Co. Waterford. Little is known of Máel-Sechlainn's immediate family…
Mac Shamhráin, Ailbhe
Ua Gormáin, Flann
Ua Gormáin, Flann (d. 1174), chief lector of Armagh, may have belonged to an ecclesiastical line of the Uí Bairrche dynasty of Leinster. As a young man, Flann travelled to England and to the Frankish realms in pursuit of further education; according to his obit in AU, he spent…
Ua Gormáin (Mac Gormain), Find
Ua Gormáin (Mac Gormain), Find (d. 1160), bishop of Kildare, probably belonged to the Uí Bairrche dynasty of north Leinster. His father may have been Gussán, a son of Muiredach Ua Gormáin (d. 1124), king of Uí Bairrche, and if so, he had at least two brothers, Óengus and…
Ua hAingliu, Donngus (Donatus)
Ua hAingliu, Donngus (Donatus) (d. 1095), third bishop of Dublin, was elected several months after his predecessor Patrick (qv) was drowned in the Irish Sea (10 October 1084). It would seem that Donngus was selected at a general synod…
Ua hÉnna, Domnall
Ua hÉnna, Domnall (1023?–1098), chief bishop of Munster, was a leading figure of the first phase of church reform in late eleventh-century Ireland. He belonged to an ecclesiastical lineage of Dál Cais origin which, in his day, filled various church offices in Munster; contemporary…
Ua hEochada, Donnchad
Ua hEochada, Donnchad (d. 1113), son of Donn Slébe and overking of Ulaid, belonged to the dynasty of Dál Fiatach. For most of the eleventh century, the dynasty had been wracked by internal dissensions; since the death of the eponymous Eochaid (1004), the kingship had been contested…
Ua Lochlainn (Mac Lochlainn), Domnall
Ua Lochlainn (Mac Lochlainn), Domnall (1048/9–1121), son of Ardgar and overking of Leth Cuinn (the northern half of Ireland), was an early representative of the Mac Lochlainn family line within the Northern Uí Néill dynasty of Cenél nÉogain. Domnall's father Ardgar (d. 1064) had…
Ua Longargáin, Donnchad
This is a co-subject for the entry on Ua Longargáin, Donnchad (Dionisius). View the original entry.
Ua Longargáin, Donnchad (Dionisius)
Ua Longargáin, Donnchad (Dionisius) (d. 1216), archbishop of Cashel, belonged to an ecclesiastical lineage of Dál Cais, descended from Donn Cuan, son of Cennétig. Earlier members of the family included Annad (d. 1099), abbot of Terryglas, Domnall (d. 1158), archbishop of Cashel,…
Ua Máelshechlainn, Conchobar
Ua Máelshechlainn, Conchobar (d. 1073), son of Domnall and king of Mide, belonged to the Clann Cholmáin dynasty of the Uí Néill. A grandson of Máel-Sechnaill (qv) son of Domnall, he was the first member of the…
Ua Máelshechlainn, Murchad
Ua Máelshechlainn, Murchad (d. 1153), son of Domnall and king of Mide, belonged to the Clann Cholmáin dynasty of Uí Néill. He survived as king for forty-seven years, in itself no mean achievement. Although his political fortunes fluctuated greatly (he was temporarily displaced…
Ua Néill, Áed
Ua Néill, Áed (975–1004), son of Domnall and king of Ailech, belonged to the Cenél nÉogain dynasty. His father, Domnall Ua Néill (qv) (d. 980), was king of Tara and one of the most innovatory leaders of his time. His mother was Dirbail…
Ua Néill, Domnall
Ua Néill, Domnall (d. 980), grandson of Niall Glúndub (qv) and king of Tara, belonged to the Northern Uí Néill dynasty of Cenél nÉogain, the cause of which had been greatly advanced by his immediate forebears. He had at least three…
Ua Néill, Flaithbertach
Ua Néill, Flaithbertach (d. 1036), son of Muirchertach and king of Ailech, belonged to the Cenél nÉogain dynasty of the Northern Uí Néill. In later sources he is sometimes referred to as Flaithbertach an Trostáin (of the pilgrim's staff). His father Muirchertach (slain…
Ua Ruairc, Áed
Ua Ruairc, Áed (d. 1087), son of Art Uallach and overking of Connacht, belonged to the dynasty of Uí Briúin Bréifne. His father Art Uallach was one of four kings of his dynasty to reign as overking of Connacht between 956 and 1102, his reign being from 1030 to 1046, when he was…
Ua Ruairc, Tigernán
Ua Ruairc, Tigernán (d. 1172), son of Donnchad and king of Bréifne, who belonged to the dynasty of Uí Briúin, was one of the strongest and most colourful rulers of his line. Claimed by Gerald (qv) of Wales to…
Ua Tuathail, Lorcán (O'Toole, Laurence)
Ua Tuathail, Lorcán (O'Toole, Laurence) (c.1128–1180), archbishop of Dublin and saint, belonged to the north Leinster dynasty of Uí Muiredaig, and was son of Muirchertach Ua Tuathail (qv), king of northern Leinster,…
Ua Tuathail, Muirchertach
Ua Tuathail, Muirchertach (d. 1164), son of Gilla-Comgaill and king of northern Leinster, belonged to the Uí Muiredaig lineage of the Uí Dúnlainge dynasty. His family line descended from Tuathal (qv) (d. 958), king of Uí Dúnlainge, and he…