Also known as Theoderic.
Events
Date of Birth: unknown.
Place of Birth: unknown.
Date of Death: 17 January 1168.
Place of Death: Gravelines.
The date and place are given by Weller (p. 547).
Place of Burial: Watten, abbey church
The place is given by de Hemptinne.
Relationships
Father: Thierry II of Lorraine.
This relationship is given by père Anselme ( 2:721), by Pirenne, by Weller (p. 544), and by Keats-Rohan (p. 242).
Mother: Gertrude of Flanders.
This relationship is given by père Anselme ( 2:721), by Pirenne, by Weller (p. 544), and by Keats-Rohan (p. 242).
Spouse: Swanhild. (Died 4 September 1133).
This relationship is given by Keats-Rohan (p. 242), by Pirenne, by Weller (p. 545), and by K. Nicholas (p. 121). Père Anselme ( 2:721) gives Thierry’s first wife as Marguerite de Clermont.
Spouse: Sybil d’Anjou. Married 1134.
This relationship is given by père Anselme ( 2:777), by Pirenne, by Keats-Rohan (p. 242), by K. Nicholas (p. 121), by Weller (p. 545), and by Baldwin.
Children (by Swanhild): .
(Complete source citations for facts about the children on this page are currently outside of the scope of this project.)
Lauretta (about 1120 - 1170) married (1) Iwan, count of Aalst; married (2) Henry II, duke of Limburg; married (3) Raoul I “le Vaillant”, count of Vermandois; married (4) Heny “the Blind”, count Namur and of Luxembourg.
Children (by Sybil):
Philip (died 1 July 1191), count of Flanders, married (1) Elisabeth de Vermandois; married (2) Mafalda of Portugal.
Matthew (about 1137 - 25 December 1173), married (1) Marie of Blois, countess of Boulogne; married (2) Eleanor of Vermandois, countess of Vermandois.
Pierre (died 1176), bishop of Cambrai, count of Nevers, married (1) Matilda of Burgundy.
Gertrude married Humbert III, count of Maurienne and of Savoy.
Marguerite I (about 1145 - 15 November 1194), countess of Flanders, married (1) Raoul II, count of Vermandois (separated before consummation); married (2) Baldwin V, count of Hainaut (Baldwin VIII, count of Flanders).
Mathilde.
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).
Baldwin, Stewart. “Foulques (Fulk) V” in The Henry Project.
Hemptinne, Th. de. "Dietrich von Elsaß" in Lexikon des Mittelalters. Band 3 (Stuttgart: 1986).
Gilbert of Mons. Chronicle of Hainaut . (Laura Napran, trans.). (The Boydell Press, 2005).
Keats-Rohan, Katharine S. B. Domesday Descendants: A Prosopography of Persons Occurring in English Documents 1106 - 1166. (Woodbridge: 2002).
Nicholas, David. Medieval Flanders. (Routledge, 1992).
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).