"Oswald (Old English: Osuualde; c 604 – 5 August 641/642) was King of Northumbria from 634 until his death, and is venerated as a saint, of whom there was a particular cult in the Middle Ages.
Oswald was the son of Æthelfrith of Bernicia and came to rule after spending a period in exile. After defeating the British ruler Cadwallon ap Cadfan, Oswald brought the two Northumbrian kingdoms of Bernicia and Deira once again under a single ruler, and promoted the spread of Christianity in Northumbria. He was given a strongly positive assessment by the historian Bede, writing a little less than a century after Oswald´s death, who regarded Oswald as a saintly king; it is also Bede who is the main source for present-day historical knowledge of Oswald. After eight years of rule, in which he was the most powerful ruler in Britain, Oswald was killed in the Battle of Maserfield." - (en.wikipedia.org 30.01.2020)
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