BattlefieldsEdwin of Northumbria Invades Gwynedd 629
Early Medieval

Edwin of Northumbria Invades Gwynedd 629

629
Anglesey, Wales
Also known as: Northumbrian Campaign against Gwynedd
Era
Early Medieval
Battle Type
Skirmish
Location
Anglesey, Wales
Status
Unregistered
The Combatants

Who Fought

Defeated
Gwynedd (Cadwallon)
Forces
Gwynedd forces
VS
Victor
Northumbria (Edwin)
Forces
Northumbrian army and fleet
Outcome
Edwin besieged Cadwallon on Priestholm Island; Gwynedd submitted temporarily
The Battle

History & Significance

Edwin greatest triumph was driving Cadwallon of Gwynedd to take refuge on Priestholm (Puffin Island) off Anglesey, demonstrating the extraordinary reach of Northumbrian power at its peak. Cadwallon later took revenge at Hatfield Chase, making this humiliation a key cause of that battle.

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