Ancient northern Anglo-Saxon kingdom.
It stretched northward from perhaps as far south as the River Forth . By the end of the 7th century AD it had united with its neighbour {{link=Deira">Deira to form the kingdom of Northumbria . It had a royal residence at coastal Bamburgh. The first recorded king, Ida, was crowned there in 547; his grandson Aethelfrith (r. 593–616) united Bernicia and Deira.