In 556 Cynric King Wessex and Ceawlin King Wessex defeated the Britons at Barbury Castle during the Battle of Beran Burg. Barbury Castle possibly of strategic importance since it is located on the Ridgeway with extensive views over the Thames valley.
In 577 Ceawlin King Wessex and his son Cuthwine King Wessex (12) won a major victory over the Britons at the Battle of Dyrham Hinton Hill. The victory of resulted in the capture of Gloucester, Cirencester and Bath.
In 592 Ceawlin King Wessex died