630s. Æthelfrith, son of Æthelric and grandson of Ida, apparently succeeded Hussa as king of the Bernicians around the year 592 or 593; Æthelfrith's accession...

Battle of the River Idle was a major victory for Rædwald of East Anglia over Æthelfrith of Northumbria in 616 in what is now Nottinghamshire. Æthelfrith was...

overlordship of Æthelberht of Kent. In 616, as a result of fighting the Battle of the River Idle and defeating Æthelfrith of Northumbria, he was able...

7th century. Æthelfrith of Northumbria annihilated a combined force from the Welsh kingdoms of Powys and Rhôs (a cantref of the Kingdom of Gwynedd), and...

ultimately gained supremacy in Northumbria, marriage alliances also helped bind these two territories together. Æthelfrith married Edwin's sister Acha,...

particular cult in the Middle Ages. Oswald was the son of Æthelfrith of Bernicia and Acha of Deira, and came to rule after spending a period in exile....

of Ælle, an elder brother of Edwin, an otherwise unknown Deiran noble, or the father of Æthelfrith. Æthelfrith himself appears to have been king of "Northumbria"—both...

Deira. The two were first united by king Æthelfrith around the year 604, and except for occasional periods of division over the subsequent century, they...

death of Æthelberht in 616, Rædwald of East Anglia became the most powerful leader south of the Humber. Following the death of Æthelfrith of Northumbria, Rædwald...

conquered by Æthelfrith, and in this case Æthelric may have been killed during warfare. Æthelfrith ruled both Deira and Bernicia, the two components of Northumbria...