In the

Ulster Cycle The Ulster Cycle (), formerly known as the Red Branch Cycle, is a body of medieval Irish heroic legends and sagas of the Ulaid. It is set far in the past, in what is now eastern Ulster and northern Leinster, particularly counties Armagh, Do ...

Irish mythology Irish mythology is the body of myths indigenous to the island of Ireland. It was originally Oral tradition, passed down orally in the Prehistoric Ireland, prehistoric era. In the History of Ireland (795–1169), early medieval era, myths were ...

, Dubthach Dóeltenga (" chafer-tongue", an

Old Irish Old Irish, also called Old Gaelic (, Ogham, Ogham script: ᚌᚑᚔᚇᚓᚂᚉ; ; ; or ), is the oldest form of the Goidelic languages, Goidelic/Gaelic language for which there are extensive written texts. It was used from 600 to 900. The ...

term which meant "backbiting") was a cynical ally of

Fergus mac Róich Fergus mac Róich/Róigh (literally "Virility, manliness, son of great stallion") is an Irish hero and a character in the Ulster Cycle of Irish mythology. Formerly the king of Ulaid, Ulster, he is tricked out of the kingship and betrayed by Conc ...

who rarely had a good word to say about anyone. He accompanied Fergus to escort

Deirdre Deirdre ( , ; ) is a tragic heroine in the Ulster Cycle of Irish mythology. She is also known by the epithet "Deirdre of the Sorrows" (). Deirdre is a prominent figure in Irish legend. American scholar James MacKillop (author), James MacKil ...

and

Naoise In Irish mythology, Naisi,"Deirdre and Naisi". In: Thomas, Edward. ''Celtic stories''. Oxford: The Clarendon Press. 1911. pp. 48-60. Noíse or Noisiu (modern spelling: Naoise ) was the nephew of King Conchobar mac Nessa of Ulster, and a son of ...

back to Ireland under the orders of

Conchobar () is an old and famous Irish name, Irish male name meaning "lover of canines". It is the source of the Irish names Conor, Connor (disambiguation), Connor, Connors (disambiguation), Connors, Conner (disambiguation), Conner, O'Connor (surname), O'C ...

and later followed Fergus into exile in

Connacht Connacht or Connaught ( ; or ), is the smallest of the four provinces of Ireland, situated in the west of Ireland. Until the ninth century it consisted of several independent major Gaelic kingdoms (Uí Fiachrach, Uí Briúin, Uí Maine, C ...

following Naoise's murder under Conchobar's orders. He was responsible for the death of Conchobar's son, among others. He later fought beside him in the '' Táin Bó Cuailnge'', although at one point Fergus kicked him right out of the camp for his plans to kill

Cú Chulainn Cú Chulainn ( ), is an Irish warrior hero and demigod in the Ulster Cycle of Irish mythology, as well as in Scottish and Manx folklore. He is believed to be an incarnation of the Irish god Lugh, who is also his father. His mother is the ...

References

Ulster Cycle Characters in Táin Bó Cúailnge {{Celt-myth-stub