Donnell Ó Con Ceanainn

Donnell Ó Con Ceanainn, (died 1316) was King of Uí Díarmata.

Overview
Cú Ceanain was a contemporary, and subject of, King of Connacht Fedlim Ó Conchobair. He fought with him at the Second Battle of Athenry in 1316, where he was one of the many killed on the Irish side.