Conán mac Lia is a figure in the Fenian Cycle

Fenian Cycle

The Fenian Cycle , also referred to as the Ossianic Cycle after its narrator Oisín, is a body of prose and verse centering on the exploits of the mythical hero Fionn mac Cumhaill and his warriors the Fianna. It is one of the four major cycles of Irish mythology along with the Mythological Cycle,...

 of Irish mythology

Irish mythology

The mythology of pre-Christian Ireland did not entirely survive the conversion to Christianity, but much of it was preserved, shorn of its religious meanings, in medieval Irish literature, which represents the most extensive and best preserved of all the branch and the Historical Cycle. There are...

. A member of the warrior band the fianna

Fianna

Fianna were small, semi-independent warrior bands in Irish mythology and Scottish mythology, most notably in the stories of the Fenian Cycle, where they are led by Fionn mac Cumhaill....

, he is, in a way, less famous than the group's other Conán, Conán mac Morna

Conán mac Morna

Conán mac Morna, also known as Conán Maol , is a member of the fianna and an ally of Fionn mac Cumhail in the Fenian Cycle of Irish mythology...

.

Conán mac Lia is the son of Liath Luachra

Liath Luachra

Liath Luachra, the "Gray of Luachair", is the name of two characters in the Fenian Cycle of Irish mythology. Both appear in The Boyhood Deeds of Fionn, which details the young life and adventures of the hero Fionn mac Cumhaill....

, a member of the warrior band the fianna

Fianna

Fianna were small, semi-independent warrior bands in Irish mythology and Scottish mythology, most notably in the stories of the Fenian Cycle, where they are led by Fionn mac Cumhaill....

 slain by Fionn mac Cumhaill

Fionn mac Cumhaill

Fionn mac Cumhaill , known in English as Finn McCool, was a mythical hunter-warrior of Irish mythology, occurring also in the mythologies of Scotland and the Isle of Man...

. Conán eventually becomes lord of Luachra and a maurauder against the Fianna. One day he is defeated in Munster

Munster

Munster is one of the Provinces of Ireland situated in the south of Ireland. In Ancient Ireland, it was one of the fifths ruled by a "king of over-kings" . Following the Norman invasion of Ireland, the ancient kingdoms were shired into a number of counties for administrative and judicial purposes...

, and Fionn makes peace with him, after which he joins the band. He marries Finnine, the sister of Ferdoman, but mistreats her (in one version he kills her). Ferdoman duels Conán over the offense, and both men die in the fight.