Osric was a King of Deira (632–633 or 633–634) in northern England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

. He was a cousin of king Edwin of Northumbria

Edwin of Northumbria

Edwin , also known as Eadwine or Æduini, was the King of Deira and Bernicia – which later became known as Northumbria – from about 616 until his death. He converted to Christianity and was baptised in 627; after he fell at the Battle of Hatfield Chase, he was venerated as a saint.Edwin was the son...

, being the son of Edwin's uncle Aelfric. Osric was also the father of Oswine

Oswine of Deira

Oswine was a King of Deira in northern England. He succeeded King Oswald of Northumbria, probably around the year 644, after Oswald's death at the Battle of Maserfield. Oswine was the son of Osric....

.

After Edwin was killed in battle against Cadwallon ap Cadfan

Cadwallon ap Cadfan

Cadwallon ap Cadfan was the King of Gwynedd from around 625 until his death in battle. The son and successor of Cadfan ap Iago, he is best remembered as the King of the Britons who invaded and conquered Northumbria, defeating and killing its king, Edwin, prior to his own death in battle against...

 of Gwynedd

Kingdom of Gwynedd

Gwynedd was one petty kingdom of several Welsh successor states which emerged in 5th-century post-Roman Britain in the Early Middle Ages, and later evolved into a principality during the High Middle Ages. It was based on the former Brythonic tribal lands of the Ordovices, Gangani, and the...

 and Penda of Mercia

Penda of Mercia

Penda was a 7th-century King of Mercia, the Anglo-Saxon kingdom in what is today the English Midlands. A pagan at a time when Christianity was taking hold in many of the Anglo-Saxon kingdoms, Penda took over the Severn Valley in 628 following the Battle of Cirencester before participating in the...

, Northumbria

Northumbria

Northumbria was a medieval kingdom of the Angles, in what is now Northern England and South-East Scotland, becoming subsequently an earldom in a united Anglo-Saxon kingdom of England. The name reflects the approximate southern limit to the kingdom's territory, the Humber Estuary.Northumbria was...

 fell into disarray, with Eanfrith

Eanfrith of Bernicia

Eanfrith was briefly King of Bernicia from 633 to 634. He was the son of Æthelfrith, a Bernician king who had also ruled Deira to the south before being killed in battle around 616 against Raedwald of East Anglia, who had given refuge to Edwin, an exiled prince of Deira.Edwin became king of...

 taking power in the sub-kingdom of Bernicia

Bernicia

Bernicia was an Anglo-Saxon kingdom established by Anglian settlers of the 6th century in what is now southeastern Scotland and North East England....

 and Osric taking power in Deira. According to Bede

Bede

Bede , also referred to as Saint Bede or the Venerable Bede , was a monk at the Northumbrian monastery of Saint Peter at Monkwearmouth, today part of Sunderland, England, and of its companion monastery, Saint Paul's, in modern Jarrow , both in the Kingdom of Northumbria...

, Osric was, like Eanfrith, a Christian who reverted to paganism

Paganism

Paganism is a blanket term, typically used to refer to non-Abrahamic, indigenous polytheistic religious traditions....

 upon coming to power.

Cadwallon continued his ruinous invasion of Northumbria, however. Bede says that Osric besieged

Siege

A siege is a military blockade of a city or fortress with the intent of conquering by attrition or assault. The term derives from sedere, Latin for "to sit". Generally speaking, siege warfare is a form of constant, low intensity conflict characterized by one party holding a strong, static...

 Cadwallon "in a strong town", but Cadwallon successfully "sallied out on a sudden with all his forces, by surprise, and destroyed him [Osric] and all his army."

The year in which he and Eanfrith ruled was subsequently deemed so abhorrent because of their paganism that it was decided to add that year to the reign of the Christian Oswald of Bernicia

Oswald of Northumbria

Oswald was King of Northumbria from 634 until his death, and is now venerated as a Christian saint.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...

, who defeated Cadwallon and came to rule both Bernicia and Deira, so as to ignore the brief reigns of Osric and Eanfrith.