Events
Date of Birth: about 1030-1035.
Place of Birth: unknown.
The date is given by van Houts (ODNB).
Date of Death: 5 March 1095.
Place of Death: unknown.
The date is given by van Houts (ODNB), who states that a date of 1094 is possible but unlikely.
Relationships
Father: Baldwin IV, count of Flanders.
This relationship is given by Baldwin, by van Houts (ODNB), and by Tanner.
Mother: a daughter of Richard II, duke of Normandy.
This relationship is given by Baldwin. Tanner and van Houts call her Eleanor of Normandy.
Spouse: Tostig, earl of Northumbria
This relationship is given by Baldwin, by van Houts (p. 262), and by Tanner.
Spouse: Welf I, duke of Bavaria.
This relationship is given by by van Houts (ODNB), by Reindel, and by Tanner.
Children:
(Complete source citations for facts about the children on this page are currently outside of the scope of this project.)
Welf II (about 1073 - 24 September 1120), duke of Bavaria, married Matilda, countess of Tuscany.
Henry IX “the Black” (about 1074 - 13 December 1126), duke of Bavaria, married Wulfhilde of Saxony.
References
Baldwin, Stewart. “Baldwin IV "the Bearded" (Baudouin IV le Barbu, Balduinus Barbatus)” in The Henry Project.
Reindel, Kurt. “Heinrich IX. der Schwarze” in Neue Deutsche Biographie 8 (1969) S. 343 [Onlinefassung].
Riezler. “Welf IV.” in Allgemeine Deutsche Biographie Band 41 (1896) S. 666-670).
Tanner, Heather J. Families, Friends, and Allies: Boulogne and Politics in Northern France and England c. 879 - 1160. (Brill: 2004).
Van Houts, Elisabeth. “Intermarriage in Eleventh-Century England” in Normandy and Its Neighbours, 900-1250 (Belgium: Brepols, 2011), pp. 237-270.
Van Houts, Elisabeth. “Judith of Flanders” in the Oxford Dictionary of National Biography v. 30 (2004).