Bricriu
Bricriu (Briccriu, Bricne) is a warrior, poet and troublemaker in the Ulster Cycle of Irish mythology.
Fled Bricrenn
The story of Fled Bricrenn ("The Feast of Bricriu") tells how he once held a lavish feast for Conchobar mac Nessa and the heroes of Ulster in his house at Dún Rudraige (modern Dundrum, County Down), but knowing his reputation the Ulstermen had to be threatened to attend. First Bricriu threatened to set the Ulster warriors at odds with each other, then to set father against son and mother against daughter, but the Ulstermen finally agreed to come when he threatened to set the two breasts of each Ulster woman beating against each other.
At the feast he promised the "champion's portion" to Cú Chulainn, then to Conall Cernach, then to Lóegaire Búadach, and the three heroes proceeded to compete for the honour. Challenges were set, some judged by Ailill and Medb of Connacht, some by Cú Roí of Munster. At every test set Cú Chulainn came out top, but neither Conall nor Lóegaire would accept the decision.
Finally Cú Roí, disguised as a giant churl, challenged each of the three to behead him, then allow him to return and behead them in return. Only Cú Chulainn passed this test, and was judged worthy of the champion's portion. (Two motifs in this story, the champion's portion and the beheading challenge, are mentioned by the Greek writer Posidonius as practices of the ancient Celts. The beheading challenge is also central to the Middle English Arthurian poem Sir Gawain and the Green Knight.)
Other
Bricriu followed Fergus mac Róich into exile in Connacht following the Deirdre affair. He died there at the end of the Táin Bó Cuailnge (Cattle Raid of Cooley), trampled to death by the two bulls as they fought.
Fled Bricrenn is preserved in the near-contemporary Leabhar na h-Uidhri (The Book of the Dun Cow) and in four later manuscripts.
The name of the village of Loughbrickland, near Banbridge, County Down, is thought to derive from Irish Loch Briccrend or Bricriu's Lake, where he was a chieftain and lived in the 'Watery Fort' (ringfort) over looking the loch.[citation needed]
Bricriu is also a mischevious Will o' the Wisp who appears in three epsiodes of the old Disney Channel Original Series, So Weird. Bricriu is beleived to be an evil spirit, and is mischevious, a troublemaker, and also Irish, and may have been based on the character from Irish mythology.