Osferth.

About Osferth

Osferth or Osferd or Osfrith was described by Alfred the Great in his will as a "kinsman". Osferth witnessed royal charters from 898 to 934, as an ealdorman between 926 and 934. In a charter of Edward the Elder, he was described as a brother of the king. Therefore, Janet Nelson argues that he was probably an illegitimate son of Alfred. Simon Keynes and Michael Lapidge suggest that he may have been a relative of Alfred's mother Osburh, or a son of Oswald filius regis, who in turn may have been a son of Alfred's elder brother and predecessor as king, Æthelred I.