The Battle of Catraeth was fought around AD 600 between a force raised by the Gododdin, a Brythonic people of the Hen Ogledd or "Old North" of Britain, and the Angles of Bernicia and Deira. It was evidently an assault by the Gododdin party on the Angle stronghold of Catraeth, perhaps Catterick, North Yorkshire. The Gododdin force was said to have consisted of warriors from all over the Hen Ogledd, and even some from as far afield as Gwynedd in North Wales and Pictland. The battle was disastrous for the Britons, who were nearly all killed. The slain warriors were commemorated in the important early poem Y Gododdin, attributed to Aneirin.