Notes: On this character see S. Keynes, 'The West Saxon Charters of King Æthelwulf and his Sons', E.H.R., cix (1994), pp.1109-49. He is to be identified as the father of Æthelstan 26 Half-King. Note also Æthelfrith 14, minister. On this clan see Cyril Hart, ‘Æthelstan (fl. 932-956)’, Oxford Dictionary of National Biography, Oxford University Press, 2004. Æthelstan 26 Half-King was the son of Ealdorman Æthelfrith 3 and Æthelgyth 1, and brother to Ealdorman Ælfstan 27 of Mercia, Ealdorman Æthelwald 42 of Kent and the South-East, and Ealdorman Eadric 14 of Wessex.