Events
Date of Birth: unknown.
Place of Birth: unknown.
Date of Death: unknown.
Place of Death: unknown.
Relationships
Father: Gerhard III von Egisheim.
This relation is given by Weller (pp. 12-13) and by Legl (pp. 58-60), who note that Hildegard’s ancestry was considered uncertain until a 1991 article by Hlawitschka (which I have not read) convincingly established it.
Mother: Berta, niece of Rudolph III of Burgundy.
This relation is given by Legl (pp. 58-60) and by Weller (pp. 12-13), following Hlawischka.
Spouse: Frederick of Büren, count in Riesgau.
This relationship is given by Schwarzmeier, by Engels, by Legl (pp. 58-60), and by Weller (pp. 12-13).
Children:
(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.)
Otto (died 3 August 1100), bishop of Strasbourg.
Frederick I (about 1050 - 1105), duke of Swabia, married Agnes of Germany.
Ludwig (died about 1103).
Walter (died before 1105).
Konrad (died 1094 or 1095).
Adelheid married Manegold the Elder, count palatine of Swabia.
References
Cawley, Charles. “FRIEDRICH von Büren” in Medieval Lands: A prosopography of medieval European noble and royal families.
Engels, Odilo. Die Staufer. 6th ed. (Verlag W. Kohlhammer: Stuttgart, 1994).
Hlawitschka, Eduard. “Zu den Grundlagen der staufischen Stellung im Elsaß: Die Herkunft Hildegards von Schlettstadt” in Sitzungsberichte der Sudetendeutschen Akademie der Wissenschaften und Künste, Geisteswissenschaftliche Klasse, Jg 1991, 9. Heft (Munich, 1991) pp. 31-102. (I have not seen this.)
Legl, Frank. Studien zur Geschichte der Grafen von Dagsburg-Egisheim, (Kommission für Saarländische Landesgeschichte und Volksforschung eV: Saarbrücken, 1998).
Schwarzmaier, Hansmartin. “Friedrich I.” in Neue Deutsche Biographie 5 (1961) S. 588-589 [Onlinefassung].
Schwarzmaier, H. "Friedrich I." in Lexikon des Mittelalters. Band 4 (Artemis & Winkler: 1989) pp. 958-959.
Weller, Tobias. Die Heiratspolitik des deutschen Hochadels im 12. Jahrhundert. (2004: Böhlau Verlag).