Corcu Duibne

The tribe belonged to the Érainn and claimed descent from the legendary Conaire Mór, possibly making them distant cousins of such far off kingdoms as Dál Riata in Ulster and Scotland, as well as the closer Múscraige and Corcu Baiscind.

[6][7][8] The Iron Age mountaintop fortress Caherconree, preserving the name of the legendary Cú Roí, a cousin of Conaire Mór, is found on the Dingle Peninsula, the name of which in Modern Irish is Corca Dhuibhne.

Every morning for the next year, Boí performs a purification ritual in which she gives Corc an ablution while he is seated on the back of an otherworldly white cow with red ears.

Finally one morning Corc's curse leaves him and enters the cow, who jumps into the ocean and turns to stone, becoming the rock of Bó Boí.

When Óengus and his people are expelled from Tara over a bloody dispute with the king's son, Corc absconds from hostageship and joins his foster-father, fighting beside him in many battles.

The Dunbeg Fort on the Dingle Peninsula
An Ogam inscribed stone found at Ballintaggart, County Kerry . The text is read as MAQQI IARI (K)[OI] MAQQI MUCCOI DOVVINIAS , commemorating "Mac-Iari", a member of the Corco Duibne . Drawn by Cork architect and antiquarian Richard Rolt Brash (1817–1876) and published in 1879 in his posthumous work The Ogam Inscribed Monuments of the Gaedhil in the British islands .