Family: Thierry d'Alsace / Sybilla d'Anjou (F5431)
m. 1134
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Male
Thierry d'Alsace
Birth 1099 Alsace, France 
Death 17 Jan 1168 Gent, Oost-Vlaanderen, Belgium Burial Marriage 1134 [1] Father Mother
Female
Sybilla d'Anjou
Birth 1116 Anjou, Isere, Rhone-Alpes, France Death 1165 Israel Burial Father Mother
Male
Matthieu Vaudemont
Birth 1137 Belgium Death Burial Spouse Countess of Boulogne Marie Normandy | F5051 Marriage
Female
Countess of Flanders Margaret Vaudermont I of Flanders
Birth 1145 Alsace, France Death 15 Nov 1194 Brugge, Oost-Vlaanderen, Belgium Burial Spouse Count of Hainaut Baldwin V Hainaut | F5055 Marriage 12 Apr 1169
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Sources - [S660] Heritage Consulting, Millennium File, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2003;).
Record for of Alsace (Count of Flanders) ThierryDietrich
https://search.ancestry.com/cgi-bin/sse.dll?db=7249&h=10143612&indiv=try
- [S660] Heritage Consulting, Millennium File, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2003;).