of Ewyas into Wales to pacify the region. Neither mission was particularly successful, and by the end of 1137 the King appears to have abandoned attempts to put down the rebellion. Historian David Crouch suggests that Stephen effectively "bowed out of Wales" around this time to concentrate on his other problems. Meanwhile, he had 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 an increasingly vocal critic of the King. The security of Normandy was also a concern. Geoffrey of Anjou invaded in early 1136 and, after a temporary truce, invaded later the same year, raiding and burning estates rather than trying to hold the territory. Events in England meant that Stephen was unable to travel to Normandy himself, so Waleran de Beaumont, appointed by Stephen as the lieutenant of Normandy, and Theobald led the efforts to defend the duchy. Stephen himself only returned to the duchy in 1137, where he met with Louis VI and Theobald to agree to an informal regional alliance, probably brokered by Henry, to counter the growing Angevin power in the region. As part of this deal, Louis recognised Stephen's son Eustace as Duke of Normandy in exchange for Eustace giving fealty to the French King. Stephen was less successful, however, in regaining the Argentan province along the Normandy and Anjou border, which Geoffrey had taken at the end of 1135. Stephen formed an army to retake it, but the frictions between his Flemish mercenary forces led by William of Ypres and the local Norman barons resulted in a battle between the two halves of his army. The Norman forces then deserted Stephen, forcing the King to give up his campaign. He agreed to another truce with Geoffrey, promising to pay him 2,000 marks a year in exchange for peace along the Norman borders. In the years following his succession, Stephen's relationship with the church became gradually more complex. The royal charter of 1136 had promised to review the ownership of all the lands that had been taken by the crown from the church since 1087, but these estates were now typically owned by nobles. Henry of Blois's claims, in his role as Abbot of Glastonbury, to extensive lands in Devon resulted in considerable local unrest. In 1136, Archbishop of Canterbury William de Corbeil died.