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Battle of Heavenfield
	; Heavenfield: cross and battlefield
Date	633 or 634
Location	near Hexham (today part of Northumberland, England)55°01′13″N 2°06′02″W / 55.0203°N 2.1005°W
Result	Northumbrian victory
Belligerents
Kingdom of Northumbria	Kingdom of Gwynedd
Commanders and leaders
King Oswald	Cadwallon ap Cadfan †
Strength
700	1,000
Casualties and losses
less than 200 killed	800 killed

The Battle of Heavenfield was fought in 633 or 634 between a Northumbrian army under Oswald of Bernicia and a Welsh army under Cadwallon ap Cadfan of Gwynedd. The battle resulted in a decisive Northumbrian victory. The Annales Cambriae (Annals of Wales) record the battle as Bellum Cantscaul in 631. Bede referred to it as the Battle of Deniseburna near Hefenfelth.

Background

An alliance between Cadwallon of Gwynedd and King Penda of Mercia had led to an invasion of Northumbria. This was an odd alliance between a Christian king of Brythonic descent and a pagan king of Anglian descent. At the Battle of Hatfield Chase on 12 October 633, the invading Welsh and Mercians had killed Northumbrian king Edwin and Northumbria was split between its two sub-kingdoms, Bernicia and Deira. Cadwallon's army laid waste to Northumbria.

Eanfrith, who had been exiled under Edwin, became king of Bernicia, whilst Deira was ruled by Osric, a cousin of Edwin. According to Bede, Osric was killed by Cadwallon whilst trying to besiege him in the summer of 634, after which Cadwallon ruled both regions as a tyrant. Eanfrith's reign was short, as he was killed by Cadwallon after leaving Bernicia to negotiate peace later in the year.^[1] Eanfrith's brother, Oswald, then returned from seventeen years of exile, possibly including time spent in Dál Riata, to claim the crown of Bernicia.^[2]

Battle

It seems that the Welsh army advanced northward from York along the line of Dere Street. Oswald's forces took up a defensive position beside the Roman Wall, about 4 miles (6 km) north of Hexham. It was claimed that the night before the battle, Oswald had a vision of Saint Columba, in which the saint foretold that Oswald would be victorious. Oswald placed his army so that it was facing east, with its flanks shielded by Brady's Crag to the north and the Wall to the south. According to Bede, Oswald raised a cross, and prayed for victory alongside his troops.

It is believed that the Welsh had greater numbers, but they were forced to attack from the east along the narrow front between the Wall and Brady's Crag, where they were hemmed in and unable to outflank the Northumbrians. It is not known how long the battle lasted or what the losses were, but the Welsh line finally broke. This began a headlong flight southward by the Welsh, pursued by the vengeful Northumbrians. Many Welsh soldiers were cut down as they ran, and according to Bede, Cadwallon was caught around 10 miles (16 km) south of Heavenfield and killed at a place called Denisesburna ('Brook of Denisus'), now identified as the Rowley Burn (sometimes Rowley Brook) near Whitley Chapel.^[3]

Afterwards, due to the miraculous victory by Oswald's smaller force, the main battle site became known as Heavenfield (Heofenfeld) and became a place of pilgrimage for Christians at the time.

Aftermath

After the battle, Oswald re-united Deira with Bernicia and became king of all Northumbria. Bede believed that the importance of the battle was that it restored Christianity to Northumbria. Oswald spent eight years upon the Northumbrian throne before he was killed in the Battle of Maserfield. Oswald was succeeded as king of Northumbria by his brother Oswiu.

Site today

The road east of Chollerford that runs alongside the Roman Wall (B6318) has a wooden cross standing alongside it to mark the site of the Battle of Heavenfield. On the hill to the north of the cross stands St Oswald's Church, Heavenfield, marking the spot where Oswald was believed to have raised his battle standard. The site is around 2.8 miles (4.5 km) east of the River North Tyne.

Another possibility is near Devil's Water, as per Max Adams; Bede names the site as Denisesburn, now known to be close to Devil's Water, per a 1233 charter to Thomas of Whittington discovered in 1864 (Tom Corfe, 1997). Adams posits that the battle began on the east bank of Devil's Water, moving to the ford at Peth Foot.

St Oswald's featured in an episode of Vera (series 10, episode entitled Dirty).

References

^ Morris, Marc (2022). The Anglo-Saxons. Penguin Books. pp. 76–77. ISBN 978-1-529-15698-0.
^ Craig, D. J. (2004). "Oswald [St Oswald]". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/20916. (Subscription or UK public library membership required.)
^ Julia Barrow, 'Oswald and the Strong Man Armed', in The Land of the English Kin: Studies in Wessex and Anglo-Saxon England in Honour of Professor Barbara Yorke, ed. by Alexander Langlands and Ryan Lavelle (Leiden: Brill, 2020), pp. 183-96 (p. 189), doi:10.1163/9789004421899_010, citing William Greenwell, 'Address to the Members of the Tyneside Naturalists' Field Club (read 19 March 1863)', Transactions of the Tyneside Naturalists’ Field Club, 6 (1863–64), 1–33 (pp. 13–14).

Sadler, John. Battle for Northumbria, 1988, Bridge Studios, (pages 25–29) ISBN 0-9512630-3-X
Marsden, John. Northanhymbre Saga, 1992, Kyle Cathie Limited, (pages 113–117) ISBN 1-85626-055-0

Adams, Max. The King in the North, 2013, Head of Zeus, (pages 156-158) ISBN 9-781781-854204
Marc, Morris. The Anglo-Saxons, a history of the beginning of England, 2021
Bede. Baedae Historia ecclesiastica gentis Anglorum, 731