Family: Count of Hainaut Baldwin V Hainaut / Countess of Flanders Margaret Vaudermont I of Flanders (F829)
m. 12 Apr 1169
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Male
Count of Hainaut Baldwin V Hainaut
Birth 1150 Mons, Hainaut, Belgium 
Death 17 Dec 1195 Mons, Hainaut, Belgium Burial Mons, Hainaut, Belgium Marriage 12 Apr 1169 [1, 2] Father Count of Hainaut Baldwin IV Hainaut | F933 Group Sheet Mother Alice de Namur | F933 Group Sheet
Female
Countess of Flanders Margaret Vaudermont I of Flanders
Birth 1145 Alsace, France Death 15 Nov 1194 Brugge, Oost-Vlaanderen, Belgium Burial Father Thierry d'Alsace | F2424 Group Sheet Mother Sybilla d'Anjou | F2424 Group Sheet
Female
Sybille Hainaut
Birth 1170 Valenciennes, Nord, Nord-Pas-de-Calais, France Death 9 Jan 1217 Hainaut, Belgium Burial Spouse Guichard de Beaujeu | F889 Marriage 1195 Beaujeu, Rhône, Rhône-Alpes, France
Female
+ Isabelle Hainaut
Birth 5 Apr 1170 Valenciennes, Nord, Nord-Pas-de-Calais, France Death 15 Mar 1190 Paris, Île-de-France, France Burial Spouse Phillip II Augustus Capet | F814 Marriage 1180
Male
+ 9th Count of Flanders Baldwin VI Hainaut
Birth Jul 1172 Valenciennes, Nord, Nord-Pas-de-Calais, France Death 11 Jun 1205 Bulgaria Burial Spouse Mary Champagne | F823 Marriage 1186 Valenciennes, Nord, Nord-Pas-de-Calais, France
Male
Marquis of Namur Philip I Hainaut
Birth 1174 Mons, Hainaut, Belgium Death 15 Oct 1212 Namur, Belgium Burial Spouse Marie de France | F923 Marriage 1205
Female
Marquioness of Namur Yolanda Hainaut
Birth 1175 Oost-Vlaanderen, Belgium Death 26 Aug 1219 Istanbul, Istanbul, Turkey Burial Spouse Peter II of Courtenay | F830 Marriage 1 Jul 1193 Soissons, Côte-d'Or, Bourgogne, France
Male
Emperor of Constantinople Henry de Flanders Constantinople
Birth 1176 Belgium Death 11 Jul 1216 Thessaloniki, Central Macedonia, Greece Burial Spouse Princess of Bulgaria Marija of Bulgaria | F771 Marriage 1209 Ohrid, Ohrid, Macedonia
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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.
- [S330] Baldwin V Hainaut, http://en.wikipedia.org/wiki/Baldwin_V,_Count_of_Hainaut.