Ælfwynn, wife of Æthelstan Half-King

Ælfwynn or Ælfwyn (died 8 July 983) was a member of a wealthy Anglo-Saxon family in Huntingdonshire who married Æthelstan Half-King, the powerful ealdorman of East Anglia, in about 932.

[2] He was a strong supporter of the monastic reform movement and a close friend of Dunstan, who was one of its leaders and a future Archbishop of Canterbury and saint.

Æthelwold was appointed an ealdorman for part of his father's territory of East Anglia by Edmund's elder son King Eadwig (r.  955–959) in 956, perhaps in preparation for Æthelstan's retirement shortly afterwards to become a monk at Glastonbury Abbey.

[16] The historian Robin Fleming comments that the ætheling (prince) was profoundly influenced by his upbringing:[3] Ælfwynn's youngest son, Æthelwine, was a few years older than Edgar and probably brought up with him.

[17] Æthelwine was called Dei Amicus (friend of God) because he was the leading lay patron (after Edgar) of the monastic reform movement, and in 966 he founded Ramsey Abbey, together with Oswald, the Bishop of Worcester and later Archbishop of York.

[20] Her second son, Ælfwold, was a strong supporter of monastic reform who ordered the killing of a man who illegally claimed property belonging to Peterborough Abbey.

She was recorded in the Ramsey necrology as "our sister", the donor of Old Weston, and her death was commemorated each year on 8 July, the same day as King Edgar.