Events
Date of Birth: unknown.
Place of Birth: unknown.
Date of Death: between 1115 and 1126.
Place of Death: unknown.
The range of dates is given by Cawley.
Relationships
Father: Robert I “the Frisian”, count of Flanders.
This relationship is given by père Anselme (2:719), by Nicholas (p. 114), by van Eickels, by Weller (p. 538), and by Tanner.
Mother: Gertrud von Sachsen.
This relationship is given by père Anselme (2:719), by Nicholas (p. 114), by van Eickels, and by Tanner.
Spouse: Henry III, count of Leuven (Louvain).
This relationship is given by père Anselme (2:719), by van Eickels, by Weller (p. 538), and by Tanner.
Spouse: Thierry II, duke of Lorraine. Married August 1095.
This relationship is given by père Anselme (2:719), by Pirenne, by Nicholas (p. 114), by van Eickels, by Weller (p. 538), and by Tanner.
Children (by Hendrik):
(Complete source citations for facts about the children on this page are currently outside of the scope of this project. Most information below comes from Cawley.)
Adelaide married Simon I, duke of Lorraine.
Children (by Thierry):
Thierry (about 1000 - 17 January 1168), count of Flanders, married (1) Swanhild; married (2) Sybil d’Anjou.
Gerard.
Henri (died 6 June 1165), bishop of Toul.
Baudouin.
Ermengarde married Bernard Grossus, lord of Brancion.
References
Anselme de Sainte-Marie. Histoire Généalogique et Chronologique de la Maison Royale de France, des Pairs, Grands Officiers de la Couronne, de la Maison du Roy et des Anciens Barons du Royaume. 9 Volumes (Paris: 1726-1733).
Cawley, Charles. “GERTRUDE de Flandre” in Medieval Lands: A prosopography of medieval European noble and royal families.
Eickels, Karl van. Flandern genealogical table in volume 9 of Lexikon des Mittelalters. Munich: LexMA-Verlag, 1980-1998.
Nicholas, Karen S. “Countesses as Rulers in Flanders” in Aristocratic Women in Medieval France (University of Pennsylvania Press, 1999).
Pirenne, U. “Thierry d’Alsace” in Biographie Nationale de Belgique Volume 24 (Bruxelles:1924) pp. 871 - 882.
Tanner, Heather J. Families, Friends, and Allies: Boulogne and Politics in Northern France and England c. 879 - 1160. (Brill: 2004).
Weller, Tobias. Die Heiratspolitik des deutschen Hochadels im 12. Jahrhundert. (2004: Böhlau Verlag).