 With the possible exception of Óengus mac Colmáin, all Uí Néill kings descended from Diarmait mac Cerbaill belonged to the Síl nÁedo Sláine until the death of Cináed mac Írgalaig in 728.Thereafter the southern Uí Néill were dominated by Clann Cholmáin, or more precisely Clann Cholmáin Már, descended from Colmán Már.Only one member of the Síl nÁedo Sláine was High King of Ireland after 728, Congalach Cnogba, and he was the grandson and nephew of Clann Cholmáin kings.