Originally it comprised two independent kingdoms, Bernicia and Deira.
At his death in 633 the kingdom was again divided, Deira falling to his nephew Osric, while Bernicia was occupied by Eanfrith son of ZEthelfrith.
After Oswald's defeat and death at the hands of Penda in 642 Bernicia fell to his brother Oswio, while Oswine son of Osric became king in Deira, though probably subject to Oswio.
OSWIO (c. 612-670), king of Northumbria, son of .Ã†thelfrith and brother of Oswald, whom he succeeded in Bernicia in 642 after the battle of Maserfeld, was the seventh of the great English kings enumerated by Bede.
BERNICIA, the northern of the two English kingdoms which were eventually united in the kingdom of Northumbria.
ZEthelfrith, king of Bernicia, united Deira to his own kingdom, probably about 605, and the union continued under his successor Edwin, son of Ella or Ã†lle, king of Deira.
Bernicia was again separate from Deira under Eanfrith, son of lEthelfrith (633-634), after which date the kings of Bernicia were supreme in Northumbria, though for a short time under Oswio Deira had a king of its own.
The districts north of the Humber contained two kingdoms, Bernicia (q.v.) and Deira, which were eventually united in Northumbria.
By this he avenged his brother Eanfrith, who had succeeded Edwin in Bernicia, and became king of Northumbria.
Oswald reunited Deira and Bernicia, and soon raised his kingdom to a position equal to.
It is worthy of note that the dynasty claimed to be of the same origin as the royal house of Bernicia and that two of Cerdic's ancestors, Freawine and Wig, figure in the.
The church in 678 became the head of the new see of Bernicia, which was united to that of Lindisfarne about 821, when the bishop of Lindisfarne appears to have taken possession of the lordship which he and his successors held until it was restored to the archbishop of York by Henry II.
He became earl of Deira after the death of Eadwulf Cutel, earl of Northumbria, about 1038, and earl of all Northumbria after murdering Eadwulf, earl of Bernicia, in 1041.
But in the struggle for existence it chanced that the early English invaders secured a kingdom, Bernicia, which stretched from the Humber into Lothian, or farther north, as the fortune of battle might at various times determine; and thus, from the centre to the south-east of what is now Scotland, the people had come to be anglicized in speech before the Norman Conquest, though Gaelic survived much later in Galloway.
On the west of the northern part of the English kingdom of Bernicia, severed from that by the Forest of Ettrick, and perhaps by the mysterious work of which traces remain in the " Catrail," was the Brython or Welsh kingdom of Strathclyde, which then included the territory and population, later anglicized, of Renfrewshire, Ayrshire, Lanarkshire, Dumfriesshire, and, south of the historic border, Cumberland and Westmoreland to the Derwent.
On the seizure of Deira by 2Ethelfrith of Bernicia (probably 605), Edwin was expelled and is said to have taken refuge with Cadfan, king of Gwynedd.
Besides York, Yeavering and Maelmin in Bernicia, and Catterick in Deira, were the chief scenes of the work of Paulinus.
It may be noted here that Northumbria north of the Tyne, the old Bernicia, seems never to have passed under Danish authority and rule, but to have remained in independence until the general submission to Edward in 924.