The Ulster Cycle

The Ulster Cycle (also the Red Branch Cycle, after the warrior hall at its heart) is set at the royal court of Emain Macha under King Conchobar mac Nessa, and is generally considered to reflect an older, more archaic layer of Irish tradition than the later Fenian Cycle — closer in tone to heroic epic, concerned with kingship, honor, loyalty, and often tragedy, rather than the roaming adventure of the Fianna. Its central and longest text is the *Táin Bó Cúailnge* (The Cattle Raid of Cooley), in which Queen Medb of Connacht invades Ulster to seize a great bull, and the teenage Cú Chulainn single-handedly holds the border while the rest of Ulster's warriors lie incapacitated under a curse. Around the *Táin* sits a wide cluster of related tales — remscéla, or "fore-tales" — that explain its background, including the story of how the Ulstermen came to be cursed in the first place (through the goddess Macha, forced to race a chariot while pregnant and cursing every man of Ulster to suffer birth-pang-like weakness at their hour of greatest need), and standalone tragic tales such as that of Deirdre, whose flight from Conchobar sets off a chain of exile and bloodshed within Ulster's own ranks. Compared to the Mythological Cycle's gods and the Fenian Cycle's wandering warrior band, the Ulster Cycle's figures are closer to a royal court and its warrior elite — bound by loyalty, honor, and geasa (ritual taboos) that, when broken, tend to end in disaster rather than triumph. Many of its central relationships end badly: Cú Chulainn kills his own foster-brother and, in a separate late tale, his own son without recognizing him; Deirdre's story ends in death rather than escape; and Fergus mac Róich, once king of Ulster himself, ends up fighting against his former homeland after being wronged by Conchobar. This darker, more fatalistic tone is one of the cycle's defining features.