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Welf Guelph I-IV (Bayern) Welf (1040 - 1101)

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Welf Guelph I-IV "Guelph, Duke of Bavaria" Welf formerly Bayern aka Este
Born in Este, Padua, Veneto, Italymap
Ancestors ancestors
Brother of [half] and [half]
Husband of — married [date unknown] [location unknown]
Husband of — married (to ) [location unknown]
Descendants descendants
Died in Paphos, Cyprusmap
Profile last modified | Created 31 May 2012
This page has been accessed 2,001 times.

Categories: First Crusade | Crusade of 1101 | Herzogtum Baiern | EuroAristo - Profiles that need work | German Roots Project | Bavaria, Germany | Bavaria | State of Bavaria | Bayern, Deutschland | German Roots.

Welf Guelph I-IV (Bayern) Welf has German Roots.

Welf I [Este] (1030/40 - 09 Nov 1101).[1]



  • Duke of Bavaria[2]

European Aristocracy
Welf Guelph I-IV (Bayern) Welf was a member of aristocracy in Europe.
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  • Father: Alberto Azzo II, Marchese d'Este
  • Mother: Kunigunde von Altdorf


m. (1071) Judith of Flanders.[3]

Tracking Notes

GEDCOM: Welf IV, Duke of Bavaria Burial: Weingarten Abbey


"Judith of Flanders." The Henry Project.[4]

Searle, W.G. (1899). Anglo-Saxon Bishops, Kings, and Nobles: The Succession of the Bishops and the Pedigrees of the Kings and Nobles, (pp.358-9). London: Cambridge University Press.

Wikipedia: Judith of Flanders

MEDIEVAL LANDS: A prosopography of medieval European noble and royal families by Charles Cawley © Foundation for Medieval Genealogy & Charles Cawley 2000-2018.

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No known carriers of Welf Guelph I-IV's Y-chromosome or his mother's mitochondrial DNA have taken yDNA or mtDNA tests.

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Welf Guelph I-IV is 30 degrees from Robin Helstrom, 30 degrees from Katy Jurado and 20 degrees from Victoria of the United Kingdom of Great Britain and Ireland on our single family tree. Login to find your connection.

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