Ruaidri mac Cathal Ua Conchobair was King of Connacht in Ireland.
References
Annals of Ulster at at University College Cork Annals of the Four Masters at at University College Cork Chronicum Scotorum at at University College Cork Byrne, Francis John (2001), Irish Kings and High-Kings, Dublin: Four Courts Press, Gaelic and Gaelised Ireland, Kenneth Nicols, 1972. The Second Battle of Athenry, Adrian James Martyn, East Galway News & Views, 2008–2009