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,
Henry the Young King Henry the Young King Henry the Young King (28 February 1155 – 11 June 1183), was the eldest surviving son of Henry II of England and Eleanor of Aquitaine. Beginning in 1170, he was titular King of England, Duke of Normandy, Count of Anjou and Maine. Henry the Young King was the only King of England since the Norman Conquest to be crowned during his father's reign, but spent his reign frustrated by his father's refusal to grant him meaningful autonomous power. He died aged 28, six years before his father, leaving his brother Richard to become the next king.