 South Wales rose in rebellion, and by 1137 Stephen was forced to abandon attempts to suppress the revolt.Stephen put down two revolts in the south-west led by Baldwin de Redvers and Robert of Bampton; Baldwin was released after his capture and travelled to Normandy, where he became a vocal critic of the King.Matilda's half-brother, Robert of Gloucester, was one of the most powerful Anglo-Norman barons, controlling estates in Normandy as well as the Earldom of Gloucester.