Proper noun
Bernicia
(historical) An Anglo-Saxon kingdom that existed from 420 to 634 AD in modern-day northeastern England and southeastern Scotland.
For more on Bernicia and Northumbria, see e.g. Higham, The Kingdom of Northumbria. Source: Internet
Cuthbert came from the Bernicia part of the new Northumbrian kingdom, which was finally united in 634 around the time of his birth. Source: Internet
Bede records Aethelbert of Kent as being dominant at the close of the 6th century, but power seems to have shifted northwards to the kingdom of Northumbria, which was formed from the amalgamation of Bernicia and Deira. Source: Internet
Later, the region of present-day Northumberland formed the core of the Anglian kingdom of Bernicia (from ca. 547), which united with Deira (south of the River Tees ) to form the kingdom of Northumbria in the 7th century. Source: Internet
Oswald's brother Eanfrith became king of Bernicia, but he was killed by Cadwallon in 634 (or 633) after attempting to negotiate peace. Source: Internet
The rulers of Bernicia held the title of High Reeve of Bamburgh from at least 913 until 1041, when the last was killed by Harthacnut ; sometimes – 954–963 and 975–1016 – they also served as Earls of York. Source: Internet