BattlefieldsBattle of Mons Badonicus
Early Medieval

Battle of Mons Badonicus

500–516
Somerset, England
Also known as: Battle of Badon Hill · Mount Badon
Era
Early Medieval
Battle Type
Pitched Battle
Location
Somerset, England
Status
Unregistered
The Combatants

Who Fought

Defeated
Anglo-Saxons
Forces
c.2,000–5,000 Anglo-Saxons; Mons Badonicus, Arthurian tradition.
VS
Victor
Britons
Forces
c.2,000–5,000 Britons
Outcome
Major British victory halted Anglo-Saxon westward advance for a generation
The Battle

History & Significance

The most significant post-Roman British victory, recorded by Gildas and Nennius. Traditionally associated with Arthur, though the historical figure is disputed. The battle stalled Anglo-Saxon expansion into western Britain for roughly fifty years, preserving sub-Roman culture in the west.

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