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,
Norman conquest of England The Domesday survey was an administrative catalogue of the landholdings of the kingdom, and was unique to medieval Europe. It was divided into sections based on the shires, and listed all the landholdings of each tenant-in-chief of the king as well as who had held the land before the conquest. One of the most obvious effects of the conquest was the introduction of Anglo-Norman, a northern Old Norse-influenced dialect of Old French, as the language of the ruling classes in England, displacing Old English. Norman French words entered the English language, and a further sign of the shift was the