Gobannium was a Roman fort and civil settlement or Castra established by the Roman legions invading what was to become Roman Wales and lies today under the market town of Abergavenny, Monmouthshire in south east Wales.

Gobannium was a Roman fort and civil settlement or Castra established by the Roman legions invading what was to become Roman Wales and lies today under the market town of Abergavenny, Monmouthshire in south east Wales.