Bjórn Beorn Ulsiusson (Careful, not Estridsen family), of Denmark

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Bjórn Beorn Ulsiusson (Careful, not Estridsen family), of Denmark

Immediate Family:

Husband of NN Biórnsson family
Father of NN Suthen's father Beornsson; Beorn Biórnsson Bearsson and Siward Biornsson, Earl of Northumbria

Managed by: Jason Scott Wills
Last Updated:

About Bjórn Beorn Ulsiusson (Careful, not Estridsen family), of Denmark

Bjorn, father of Siward, and grandfather of Suthen (Sibylla) who married Donnchad mac Crinan.

Do NOT confuse this guy with Bjørn Ulfsson Estridsen and other people called Bjørn.

Siward was the son of Bjørn Bearsson, mother's name unknown.

1. BJORN Bearsson .

The Vita et Passio Waldevi Comitis records “Ursus” as father of “Spratlingus” who was father of “Ulsius”, father of “Beorn cognomento Beresune…filius ursi…Dacus natione”[373].

m ---. The name of Bjorn's wife is not known.

Bjorn & his wife had [two] children:

a) SIWARD (-York 26 Mar 1055, bur Galmanho Monastery [=York St Mary's][374]). The Vita et Passio Waldevi Comitis names “Siuuardus” as son of “Beorn cognomento Beresune…filius ursi…Dacus natione”[375]. A Dane, he may have come to England with the invasion of Knud of Denmark in 1015. He was recognised as Earl of Northumbria after the murder of his wife's uncle in 1041[376]. The Annales Dunelmenses record that "comes Siward" invaded Scotland with a large army in 1046 and briefly expelled "rege Macbeod", the king recovering his realm when Siward withdrew[377]. He actively supported Edward "the Confessor" King of England against Earl Godwin and his sons in 1051. The Annales Dunelmenses record that "Siwardus" put "Macbeth" to flight in 1054 and installed "Malcolmum rege" in the following year[378].

m ÆLFLED, daughter of EALDRED Earl of Northumbria & his [first/second] wife ---. Simeon of Durham names "Elfleda daughter of Earl Aldred" as wife of Siward and mother of Waltheof[379]. Siward & his wife had two children:

i) OSBEORN (-killed in battle 27 Jul 1054). The primary source which confirms his parentage has not yet been identified. He was killed fighting King Macbeth of Scotland with his father.

ii) WALTHEOF (-executed St Giles's Hill, Winchester 31 May 1076, bur Crowland Abbey383). Florence of Worcester records that "Waltheofum Siwardi ducis filius" went with King William to Normandy 21 Feb [1067][380]. Simeon of Durham records that "Waltheu the son of earl Siward…by Elfleda daughter of Earl Aldred" was installed as Earl of Northumberland after the earldom was confiscated from Gospatrick [in 1072][381]. His parentage is recorded by Roger of Hoveden[382]. Matthew of Paris specifies that he was the son of Siward, of Danish origin[383]. Earl of Huntingdonshire and Northamptonshire [1065].


2. [sibling of Bjørn Bearsson]

[--- . m ---.] One child:

a) [SIBYLLA] .

The Chronicle of John of Fordun records that the mother of Malcolm and Donald Bane, Duncan´s sons, was "the cousin of Earl Siward"[384]. In one earlier king list, King Malcolm III's mother is named "Suthen"[385].

m ([1030]%29 DUNCAN King of Strathclyde, son of CRINAN "the Thane" Mormaer of Atholl & his wife Bethoc of the Scots ([1001]-killed in battle either Bothganowan/Pitgaveny, near Elgin, or Burghead 14 Aug 1040, bur Isle of Iona). He succeeded in 1034 as DUNCAN I King of Scotland.],

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