Ælfthryth, wife of Edgar the brother of Ælfthryth's first husband, Æthelwine, Ealdorman of East Anglia. Supporting the unsuccessful claim of Æthelred were his mother, the Queen dowager, Bishop Æthelwold of Winchester, and Ælfhere, Ealdorman of Mercia. On 18 March 978, while visiting Ælfthryth at Corfe Castle, King Edward was killed by servants of the Queen, leaving the way clear for Æthelred to be installed as king. Edward was soon considered a martyr, and later medieval accounts blamed Ælfthryth for his murder. According to the "Anglo-Saxon Chronicle", King Edward was murdered at Corfe Castle in 978. As the king developed into a cult figure, a
The King of England and his Three Sons not stir. In the morning, the old man gave him breakfast, a new horse, and a ball of yarn to throw between the horse's ears. When the prince threw it and chased it, he came to the old man's brother, who was uglier than the first one. He received the same hospitality, and the same unpleasant night, and this brother sent him on to the third brother. At the third brother's, the brother, who was even uglier than the second one, told him he must go on to a castle. There, he must tell swans to bear him over the