Osbeorn Bulax
Anglo-Norman noble · Died 1054
Osbeorn, also spelled Osbjorn and Osbert, given the nickname Bulax, was the son of Siward, Earl of Northumbria. He is one of two known sons of Siward, believed to be the elder.
Osbeorn Bulax is read about 4 times a day, in 3 languages.
A typical day, 30 days to 16 June 2026
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About this person
While it is normally assumed he was the son of Siward's Bamburgh wife Ælfflæd, it has been suggested by William Kapelle that Osbeorn's mother was not Ælfflæd. The nickname "Bulax" probably represents the Old Norse term for "Poleaxe".
Status
Deceased
Dates
Died 1054