Badon Hill

A hill north of Solsbury in the countryside of Logres. 
The location of a battle between the Britons and Anglo-Saxons in post-Roman Britain in the late 5th century. It was a major victory for the Britons, stopping westward encroachment of Anglo-Saxon kingdoms for a period, and lead by King Arthur. 
Saxon: Baddon Byrig 
Celtic: Badonici Montis
Also: Mount Badon or Mons Badonicus