Osferth or Osferd or Osfrith, was described by Alfred the Great in his will as a "kinsman", he may have been a relative of Alfred's mother Osburh, or Osburga was the first wife of King Æthelwulf of which location?
Osferth Osferth or Osferd or Osfrith (fl. c.885 to c.934) was described by Alfred the Great in his will as a "kinsman". Osferth witnessed royal charters from 898 to 934, and in a charter of Edward the Elder he was described as a brother of the king. He witnessed as an ealdorman between 926 and 934. 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" (king's son), who may in turn have been a son of Alfred's elder brother and predecessor as king, Æthelred I. However, Janet Nelson argues that he was probably an illegitimate son of Alfred.
Osulf I of Bamburgh Osulf (fl. 946—54) was high-reeve of Bamburgh and ruler of Northumbria. Sometimes called "earl", he is more surely the first recorded high-reeve of Bamburgh and the man who, after assisting in the death of its last independent ruler Erik Bloodaxe, administered the York-based Kingdom of Northumbria when it was taken over by the Wessex-based King Eadred of England in 954.