The north Northumbrian Anglo-Saxon kingdom. This was reputed to have been set up at Bamburgh by Ida in 547AD. It was engaged in power struggles with Deira in the south of the region for control of Northumbria - power alternating between the two, and forcing the respective losing royal family into exile. After the settling down of the internal Northumbrian struggles there were power struggles with other areas of Britain, including Mercia and the Picts (of Scotland). A person from Bernicia was called a Bernician.