 In return for the Vikings' loyalty, they were granted all the land between the river Epte and the sea, as well as Duchy of Brittany, which at the time was an independent country which West Francia had unsuccessfully tried to conquer.Rollo also agreed to be baptised and to marry Charles' daughter Gisela.Also in 911, Louis the Child, the last Carolingian king of East Francia died, and nobles of Lotharingia, who had been loyal to him, under the leadership of Reginar, Duke of Lorraine declared Charles their new king, breaking from East Francia which had elected non-Carolingian Conrad I as the new king.