UNKNOWN Sybilla

Abt 1010 - 1050  (40 years)

• Name	UNKNOWN Sybilla
  Birth	Abt 1010	Northumbria, England
  Gender	Female
  Death	1050	Scotland
  Notes	This is the Final Profile ID for Suthen, wife of Duncan I of Scotland. Suthen/Sybil is being consolidated in this profile. Due to her unknown parentage, her LNAB has been determined as UNKNOWN. Take care when merging. There is confusion surrounding the origins of Sybill/Suthen. Conflicting theories claim she is either a: cousin, sister, or daughter of Siward, Earl of Northumbria. Therefore, her LNAB is "UNKNOWN". Siward had 2 known children: Waltheof of Bamburg and (unproven) Osbeorne (d.27 Jul 1054). "[SIBYLLA] . The Chronicle of John of Fordun states the mother of Malcolm and Donald Bane, Duncan's sons, was "the cousin of Earl Siward". This info is not in any earlier source and should be considered dubious" (Medieval Lands) Please see G2G discussion for more: http://www.wikitree.com/g2g/137645/what-is-the-lnab-for-suthen-sybil-of-scotland- Vitals Name: Suthen Alias: Sybill, Sybilla b. ____ d. ____ Disputed Origins Uncertain Family Sybill's relation to Siward, Earl of Northumbria, as well as Bjorn is unknown. She has been referred to as Siward's cousin, sister, and daughter. John of Fordun: Duncan's wife was the cousin of Earl Siward.[1] Foundation for Medieval Genealogy [2] states: information is dubious ... "In one earlier king list, King Malcolm III's mother is named "Suthen"". more recent sources suggest:[citation needed] Earl Siward and Sybilla are siblings. Sybilla was daughter of Bjorn Bearsson and sister of Sigurd "Digera" Bjornsson, Earl of Northumbria Marriage and Issue m. c.1030 Duncan of Scotland.[3] Issue: Malcolm III Donald III Maelmuire.[4] Sources ↑ Fordun, J. (1872) Chronicle of a Scottish Nation. Felix J.H. Skene, Trans. & William F. Skene, Ed. Edinburgh: Edmonston and Douglas. www.archive.org ↑ fmg.ac ↑ Ashley, M. (2008). A Brief History of British Kings and Queens, (pp.106-107). Philadelphia, PA: Running Press Book Publishers. Print. ↑ Alan Anderson's EARLY SOURCES OF SCOTTISH HISTORY, AD 500-1286; Weir, A. (n.d.) BRITAIN'S ROYAL FAMILIES (revised edition). http://www.clanmacfarlanegenealogy.info/genealogy/TNGWebsite/getperson.php?personID=I4519&tree=CC
  Person ID	I59221	Freeman-Smith
  Last Modified	27 Jan 2026

  
  

  Family	DUNKELD Duncan,   b. Abt 1010, Scotland d. 14 Aug 1040, Elgin, Scotland (Age 30 years)
  Marriage	1030
  Children	1. DUNKELD Malcom,   b. Abt 1031, Atholl, Perthshire, Scotland d. 13 Nov 1093, Alynwick, Northumberland, England (Age 62 years)  [Father: natural]  [Mother: natural]
  Family ID	F26331	Group Sheet  |  Family Chart
  Last Modified	27 Jan 2026