[1] Conchobar was the son of Donnchad Midi, high-king of Ireland (733–797); his mother was Fuirseach, a noblewoman of the Dál nAraidi.
Even then Conchobar had to deal with the opposition of Áed's cousin, Murchad mac Máele Dúin.
The latter was able to form an alliance with one of Conchobar's own subject kindreds, the Síl nÁedo Sláine.
[4] In 823 Conchobar formed an alliance with Feidlimid mac Crimthainn, King of Munster (820–847).
[5] Conchobar died in unknown circumstances in 833, to which renewed Viking raids formed the backdrop.