Stephen, King of England also risen to power under Henry I. Henry of Blois had become a Cluniac monk and followed Stephen to England, where the King made him Abbot of Glastonbury, the richest abbey in England. The King then appointed him Bishop of Winchester, one of the richest bishoprics, allowing him to retain Glastonbury as well. The combined revenues of the two positions made Henry of Winchester the second-richest man in England after the King. Henry of Winchester was keen to reverse what he perceived as encroachment by the Norman kings on the rights of the church. The Norman kings had traditionally exercised
Stephen, King of England 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 the King, forcing Stephen to give up his campaign. Stephen agreed to another truce with Geoffrey,