Category
page 16th-century English people
Cerdic of Wessex
1st King of Wessex from 519 to 534
Æthelfrith of Northumbria
thumb|200px|right|The main Anglo-Saxon Kingdoms in the 7th century.
Æthelfrith (died ) was King of Bernicia from c. 593 until his death around 616 AD at the Battle of the River Idle. He became the first Bernician king to also rule the neighbouring land of Deira, giving him an important place in the development and the unification of the later kingdom of Northumbria. Reigning from the late 6th century until his death, he was known for his military campaigns against the Britons and his victory over the Gaels of Dál Riata. His most famous victory came at the Battle of Chester, where he decisively