The Táin Bó Cúailnge (“The Cattle Raid of Cooley”), usually called simply the Táin, is the great epic of early Irish literature — the nearest thing Ireland has to the Iliad. It tells how Medb, the warrior queen of Connacht, led the armies of Ireland into Ulster to capture a magnificent bull, and how a single teenage hero, Cú Chulainn, held them back at the fords while the men of Ulster lay helpless under a curse.
It is a story of pride, greed, heroism, and grief, full of violence and dark comedy. It survives in medieval manuscripts, the oldest version in the twelfth-century Lebor na hUidre (“Book of the Dun Cow”) and the Yellow Book of Lecan, but its language and world reach back centuries earlier. It is the centrepiece of the Ulster Cycle, the body of stories about the warriors of King Conchobar mac Nessa of Ulster.
The Pillow Talk
The most famous version begins in bed. At the royal fort of Cruachan in Connacht, Queen Medb and her husband Ailill are lying together, and Ailill remarks that she is better off now than on the day he married her. Medb bristles: she was well off before he came. A quarrel follows about which of them is wealthier.
They compare everything they own — their buckets and tubs, their rings and clasps and clothes, their flocks of sheep, their herds of horses, their swine, their cattle. At every count they are equal, except for one thing. Among Ailill’s herds is a great white-horned bull, Finnbennach, which was born into Medb’s herd but refused to be owned by a woman and went over to Ailill’s.
Medb has nothing to match it. She learns that there is one bull in Ireland even greater: the Donn Cúailnge, the Brown Bull of Cooley, in Ulster. Fifty boys could play on its back. It sired fifty calves a day, and its bellow could be heard across the land.
The Refusal
Medb sends messengers to its owner, Dáire mac Fiachna, offering generous payment for the loan of the bull for a year — land, a chariot, and even “the friendship of my own thighs.” Dáire agrees. But that night, the drunken messengers boast that if Dáire had not given it willingly, Medb would have taken it by force. Dáire, insulted, refuses.
“It was known,” says Medb, “that it would not be given freely, and it will be taken by force.”
The Curse of Macha
Medb gathers a vast army: the forces of Connacht, men from the other provinces of Ireland, and exiles from Ulster led by the former king Fergus mac Róich, who had fled after a betrayal by Conchobar.
Ulster should have been able to defend itself. But the men of Ulster are under a curse. Long ago, the goddess Macha, heavily pregnant, was forced by the king of Ulster to race against his horses. She won, but gave birth at the finishing line in agony, and cursed the Ulstermen: in their hour of greatest need, they would suffer the weakness of a woman in childbirth for five days and four nights. This is the Debility of the Ulstermen, the ces noínden.
When Medb’s army invades, the Ulstermen fall helpless. Only one warrior is exempt — Cú Chulainn, who is seventeen and, being of divine parentage (his father was the god Lugh), is not subject to the curse.
The Boyhood Deeds
As the army marches, Fergus and the other Ulster exiles tell Medb stories of Cú Chulainn’s childhood — the macgnímrada, or “boyhood deeds.” How at five he defeated 150 boys of the royal youth troop. How at seven he killed the fierce hound of the smith Culann with his bare hands, and offered to take its place as guard dog until a new one could be raised — which is how he got the name Cú Chulainn, “the Hound of Culann.” How on the day he took up arms, he killed three sons of Nechta Scéne, who had killed many Ulstermen, and came back to Emain Macha in such a battle fury that the women of Ulster had to come out naked to shame him, and he had to be plunged into three vats of cold water to cool his rage. (See Cú Chulainn: The Hound of Culann.)
Holding the Fords
Cú Chulainn uses guerrilla tactics to slow the army, killing hundreds with his sling. Finally he reaches an agreement with Medb: he will face a single champion at a ford each day. While the combat lasts, the army may advance; when the champion falls, it must halt.
Day after day, he defeats every warrior sent against him. Medb’s champions are killed at the ford one after another. She tries every trick — bribery, treachery, sending several men at once, offering her daughter Findabair as a reward to anyone who will face him. Cú Chulainn kills them all.
The Morrígan also intervenes, attacking him in the forms of an eel, a wolf, and a heifer after he refuses her love (see The Morrígan and Cú Chulainn).
The Visit of Lugh
After weeks of fighting, Cú Chulainn is covered in wounds. His divine father, Lugh, appears and tells him to sleep for three days and three nights while he fights in his place and heals his wounds with herbs. During this time, the boy troop of Ulster, too young to be affected by the curse, attack Medb’s army to protect him and are slaughtered.
When Cú Chulainn wakes and learns of it, he is seized by his most terrible ríastrad, the “warp spasm.” His body twists inside his skin; one eye sinks into his head and the other bulges out; his mouth stretches to his ears; a column of dark blood rises from the top of his head. In this state he drives his scythed chariot around Medb’s army and kills hundreds.
The Fight with Ferdiad
The emotional climax of the Táin is Cú Chulainn’s duel with Ferdiad, his foster-brother and dearest friend, with whom he trained under the warrior-woman Scáthach in Alba (Scotland). Medb persuades Ferdiad to fight by getting him drunk, offering him her daughter, and accusing him of cowardice.
The two friends fight for three days at the ford. Each evening they embrace, share food and healing herbs, and their horses graze in the same field. On the fourth day, the fight turns bitter. At last, Cú Chulainn calls for the gáe bolga, the barbed spear that only Scáthach had taught him to use, which enters a body as one point and opens into thirty barbs. He kills Ferdiad with it.
Then he carries his friend’s body across the ford so that it lies on the Ulster side, and collapses in grief. His lament for Ferdiad is one of the most celebrated passages in Irish literature: “It was play, it was sport, until Ferdiad came to the ford.”
The Final Battle
At last the Ulstermen recover from their curse. King Conchobar leads them against Medb’s army in a great battle at Gáirech. Fergus, fighting for Medb, is about to kill Conchobar, but is persuaded to strike the hills instead, and he slices the tops off three hills in Meath. Cú Chulainn, wounded, rises from his bed to join the fight, and Fergus, who had promised to yield to him, withdraws with his troops. Medb’s army collapses.
Medb is caught by Cú Chulainn while she is relieving herself behind the lines — a moment of bawdy comedy characteristic of the Táin. He spares her, since he will not kill a woman.
The Battle of the Bulls
But Medb has already succeeded in her goal: the Donn Cúailnge has been captured and sent back to Connacht. When the Brown Bull meets Finnbennach, the White-Horned Bull, they fight across the whole of Ireland all night. In the morning, the Brown Bull appears with the remains of Finnbennach on his horns, scattering pieces of it across Ireland — which explains many place-names. Then the Brown Bull returns to Cooley, where his heart bursts, and he dies.
The war has achieved nothing. Both bulls are dead.
Meaning and Legacy
The Táin is a story about the futility of war. Its cause is a marital squabble over possessions; its victims are countless; and in the end, the prize itself is destroyed. At its heart are the tragedies of Cú Chulainn and Ferdiad, and the heroic ideal of the warrior who fights alone for his people.
The epic has been translated many times. Thomas Kinsella’s version, The Táin (1969), with brush drawings by Louis le Brocquy, is the most celebrated in English. It has been adapted for the stage, as a graphic novel, and in the Cattle Raid of Cooley place-names that still mark the Cooley Peninsula in County Louth. Medb, Cú Chulainn, and Ferdiad are among the most famous figures in Irish culture.
Last reviewed: September 2026.