Matilda returned to Normandy, now in the hands of her husband, in 1148, leaving her eldest son to continue the campaign in England; he eventually succeeded to the throne as Henry II in 1154, forming the Angevin Empire. She settled her court near Rouen and for the rest of her life concerned herself with the administration of Normandy, acting on her son's behalf when necessary. Particularly in the early years of her son's reign, she provided political advice and attempted to mediate during the Becket controversy. She worked extensively with the Church, founding Cistercian monasteries, and was known for her piety. She was buried under the high altar at Bec Abbey after her death in 1167.