Cillíne mac Forannáin
Cillíne mac Forannáin was a king of the Uí Failge, a Laigin people of County Offaly. He was the great grandson of a brother of Áed Rón mac Cathail, a previous king.
He is listed as king in the Book of Leinster king list and is also mentioned in a poem in the genealogies about the royal fort at Rathangan, County Kildare. His exact reign dates are uncertain. Though listed after Ailill mac Áedo Róin in the king list; the poem mentions a king named Conaing between their reigns.
He was slain in internal conflict among the Uí Failge at the Battle of Cúil Corra. He was apparently succeeded by a certain Máel Dúin. Eventually his nephew Fland Dá Chongal became king.
