 Some chroniclers from north of the Pyrenees report an earlier espousal, to a daughter of William the Conqueror, King of England and Duke of Normandy named Agatha.Several northern sources report that Alfonso was affianced to Agatha, the daughter of William the Conqueror, King of England and Duke of Normandy, an arrangement negotiated in 1067.She is said to have been sent to Iberia, but to have died before the marriage could take place.