Countess of Flanders Margaret Vaudermont I of Flanders
1145 - 1194 (49 years)-
Name Margaret Vaudermont I of Flanders [1, 2, 3, 4] Title Countess of Flanders Birth 1145 Alsace, France 
Gender Female Reference Number 28-16337988-02 Death 15 Nov 1194 Brugge, Oost-Vlaanderen, Belgium Person ID I2145 MontyHistNotes_II Last Modified 6 Sep 2025
Father Thierry d'Alsace, b. 1099, Alsace, France d. 17 Jan 1168, Gent, Oost-Vlaanderen, Belgium (Age 69 years) Relationship natural Mother Sybilla d'Anjou, b. 1116, Anjou, Isere, Rhone-Alpes, France d. 1165, Bethlehem, Israel (Age 49 years) Relationship natural Marriage 1134 [5] Family ID F2424 Group Sheet | Family Chart
Family Count of Hainaut Baldwin V Hainaut, b. 1150, Mons, Hainaut, Belgium d. 17 Dec 1195, Mons, Hainaut, Belgium (Age 45 years) Marriage 12 Apr 1169 [1, 2] Children > 1. Sybille Hainaut, b. 1170, Valenciennes, Nord, Nord-Pas-de-Calais, France d. 9 Jan 1217, Hainaut, Belgium (Age 47 years) [Father: natural] [Mother: natural]+ 2. Isabelle Hainaut, b. 5 Apr 1170, Valenciennes, Nord, Nord-Pas-de-Calais, France d. 15 Mar 1190, Paris, Île-de-France, France (Age 19 years) [Father: natural] [Mother: natural]+ 3. 9th Count of Flanders Baldwin VI Hainaut, b. Jul 1172, Valenciennes, Nord, Nord-Pas-de-Calais, France d. 11 Jun 1205, Bulgaria (Age 32 years) [Father: natural] [Mother: natural]> 4. Marquis of Namur Philip I Hainaut, b. 1174, Mons, Hainaut, Belgium d. 15 Oct 1212, Namur, Belgium (Age 38 years) [Father: natural] [Mother: natural]> 5. Marquioness of Namur Yolanda Hainaut, b. 1175, Oost-Vlaanderen, Belgium d. 26 Aug 1219, Istanbul, Istanbul, Turkey (Age 44 years) [Father: natural] [Mother: natural]> 6. Emperor of Constantinople Henry de Flanders Constantinople, b. 1176, Belgium d. 11 Jul 1216, Thessaloniki, Central Macedonia, Greece (Age 40 years) [Father: natural] [Mother: natural]Family ID F829 Group Sheet | Family Chart Last Modified 6 Sep 2025
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Event Map 
Death - 15 Nov 1194 - Brugge, Oost-Vlaanderen, Belgium 
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Sources - [S330] Baldwin V Hainaut, http://en.wikipedia.org/wiki/Baldwin_V,_Count_of_Hainaut.
- [S323] thePeerage.com, (Name: thePeerage.com;), Hainaut Baldwin V #113598 http://thepeerage.com/p11360.htm#i113598.
- [S323] thePeerage.com, (Name: thePeerage.com;), Hainaut Baldwin VI #003646 http://thepeerage.com/p365.htm#i3646.
- [S323] thePeerage.com, (Name: thePeerage.com;), Champagne Mary #031101 http://thepeerage.com/p3111.htm#i31101.
- [S2174] Heritage Consulting, Millennium File, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2003;).
- [S330] Baldwin V Hainaut, http://en.wikipedia.org/wiki/Baldwin_V,_Count_of_Hainaut.