'Togail Bruidne Dá Derga', also known as 'The Destruction of Da Derga's Hostel' is an Irish tale belonging to the Ulster Cycle of Irish mythology. It recounts the birth, life, and death of Conaire Mór son of Eterscél Mór, a legendary High King of Ireland, who is killed at Da Derga's hostel by his enemies when he breaks his geasa.