"Y Gododin: A Poem of the Battle of Cattraeth" by Aneirin is a medieval Welsh poem dated between the 7th and early 11th centuries. It consists of elegies for three hundred warriors from the Brittonic kingdom of Gododdin who died fighting the Angles at Catraeth around AD 600. After a year of feasting at Din Eidyn, the warriors attacked against overwhelming odds, and nearly all perished. The poem survives in a single 13th-century manuscript and ranks among the oldest Welsh works of poetry.