Background
Creassa was a daughter of King Urchadh mac Murchadh of Maigh Seóla (reigned 891?-943).
Creassa was a daughter of King Urchadh mac Murchadh of Maigh Seóla (reigned 891?-943).
The most notable would descend from Conchobar, whose descendants would take his name as their surname, O"Connor. This line of the family would remain Kings of Connacht into the 15th century. Two of them - Toirdelbach Ua Conchobair (1088–1156) and Ruaidrí Ua Conchobair (died 1198) - would become High Kings of Ireland.
He was the ancestor of the O"Flaherty family and their related septs.