A long-lost battlefield where Anglo-Saxon forces delivered a significant defeat to a Viking army may have been discovered in Devon, England. Researchers have identified Castle Hill, an Iron Age hillfort near Beaford, as a strong candidate for the legendary Battle of Cynuit, which took place in 878.

A Pivotal Clash

The battle occurred at a critical juncture for Alfred the Great's Kingdom of Wessex, which was facing overwhelming pressure from Viking incursions. Ancient accounts suggest that between 800 and 1,200 Viking warriors were killed in the engagement. The site of Castle Hill is also believed by some to be the burial place of Ubbe Ragnarsson, a notorious Viking leader.

Historian Paul Harper, author of a new book on the findings, stated that Castle Hill presents the most compelling evidence for the battle site after centuries of searching. The location, described as a remote and rural part of Britain, was once central to a conflict with profound consequences for the island's future.

Archaeological Evidence and Historical Accounts

Nick Arnold, whose research is featured in Harper's book, identified Castle Hill by examining historical records, maps, and ancient forts. The site aligns with descriptions provided by Alfred's biographer, Asser, who noted the battlefield was in Devon, lacked a nearby water source, and was vulnerable from the east. A later chronicler, Geoffrey Gaimar, referred to the location as 'Penwood,' meaning a headland next to woods.

Castle Hill features ancient earth and stone ramparts and no apparent water source within the fort. An ancient trackway is also believed to have run alongside the hillfort, connecting Bideford and Exeter, a route now largely paralleled by the A3124, which would have been crucial for medieval armies.

Castle Hill appears to fit the description remarkably closely, with ancient earth and stone ramparts and no obvious water source within the fort itself

Arnold's study indicated that Castle Hill is the only location in Devon matching the description of a headland fort with comparatively weaker defenses, secure from all directions except the east.

The Mound of Ubbelawe

Intriguingly, a large mound approximately 39 feet (12 meters) across and over 8 feet (2.5 meters) high lies near the fort. Nineteenth-century maps label this mound as a 'tumulus,' and geophysical surveys suggest it contains a pile of stones atop a rocky outcrop. Experts believe this could be the final resting place of Ubbe Ragnarsson.

The site – which features a large mound (pictured) – could also be where the ashes of notorious Viking leader Ubbe Ragnarsson were buried

According to later medieval accounts, Ubbe's followers buried him beneath a large mound after his death, naming it 'Ubbelawe,' meaning 'Ubba's mound.' Ubbe Ragnarsson was one of the sons of the legendary Viking warrior Ragnar Lothbrok and a leader of the Great Heathen Army that invaded Anglo-Saxon England in 865.

Ubbe was one of the sons of the legendary Ragnar Lothbrok, whose supposed death in a snake pit inspired the popular TV series Vikings. Pictured: Jordan Patrick Smith playing Ubbe in the hit series

Historical Context

The research suggests the Vikings may have sailed up the River Taw and targeted royal estates near Bishops Tawton, where they encountered Devon troops led by Odda. The Anglo-Saxon forces reportedly launched a dawn attack, killing hundreds and capturing the Viking raven war banner.

Weeks after the Battle of Cynuit, Alfred the Great emerged from hiding and subsequently defeated the Vikings at the Battle of Edington, a victory that significantly shaped the future of England. Harper emphasized that had the Vikings won at Cynuit, England might have become a collection of Danish states, drastically altering its language, culture, and history.

The findings have been published in Harper's book, "Sons of Ragnar."