Fothad Cairpthech

Fothad Cairpthech ("chariot-fighter"), son of Lugaid mac Con, was joint High King of Ireland with his brother Fothad Airgthech, reputedly in the 3rd century. They had ruled a year when Fothadh Airgthech killed his brother, and was himself killed by Caílte mac Rónáin of the fianna in the Battle of Ollarba.