Boudewijn IX van VlaanderenAge: 34 years1171–1205
- Name
- Boudewijn IX van Vlaanderen
Boudewijn I van Constantinopel; Balduin IX, von Flandern
- Name
- Boudewijn I van Constantinopel; Balduin IX, von Flandern
- Type
- also known as
Baldwin I. ; Balduin IX. von Flandern
- Name
- Baldwin I. ; Balduin IX. von Flandern
- Type
- also known as
Boudewijn IX. van Vlaanderen
- Name
- Boudewijn IX. van Vlaanderen
| Birth | July 1171 21 26 |
| Birth of a sister | Jolante van Vlaanderen 1171 |
| Death of a paternal grandfather | Baudouin IV. de Hainaut November 8, 1171 (Age 4 months) |
| Birth | July 1172 22 27 |
| Birth of a brother | Philipp I. de Namur 1175 (Age 3 years) |
| Birth of a brother | Hendrik van Vlaanderen 1176 (Age 4 years) |
| Birth of a sister | Sibylle van Vlaanderen about 1178 (Age 6 years) |
| Birth of a brother | Eustatius van Vlaanderen about 1180 (Age 8 years) |
| Birth of a brother | Hendrik van Vlaanderen about 1187 (Age 15 years) |
| Birth of a brother | Eustatius van Vlaanderen about 1189 (Age 17 years) |
| Death of a sister | Isabella de Hainaut 1190 (Age 18 years) |
| Death of a mother | Marguerite d'Alsace 1194 (Age 22 years) |
| Death of a mother | Marguerite d'Alsace November 15, 1194 (Age 23 years) |
| Death of a mother | Marguerite d'Alsace November 25, 1194 (Age 23 years) |
| Death of a father | Boudewijn VIII. de Moedige van Vlaanderen December 17, 1195 (Age 24 years) |
| Death of a father | Boudewijn VIII. de Moedige van Vlaanderen December 17, 1195 (Age 24 years) |
| Birth of a daughter #1 | Joanna van Vlaanderen 1199 (Age 27 years) |
| Birth of a daughter #2 | Joanna van Vlaanderen about 1200 (Age 28 years) |
| Birth of a daughter #3 | Margaretha van Constantinopel June 2, 1202 (Age 30 years) |
| Occupation | count, emperor |
| Occupation | graaf (count), emperor |
| Location | 4th crusade |
| Death | imprisoned after July 20, 1205 (Age 34 years) |
| Family with parents |
| father |
Boudewijn VIII. de Moedige van Vlaanderen Birth: 1150 Death: December 17, 1195 — Bergen (Mons), Belgium |
| mother |
Marguerite d'Alsace Birth: 1145 45 29 Death: 1194 — château de Male, Bruxelles, Belgium |
|
Marriage: 1169 — |
|
|
Marriage: — |
|
|
7 years younger brother |
Philipp I. de Namur Birth: 1175 25 30 Death: October 5, 1212 — Valenciennes, Hainaut, Nord, France |
|
-9 years elder sister |
Isabella de Hainaut Birth: 1170 20 25 Death: 1190 |
|
7 years sister |
Jolante van Vlaanderen Birth: 1171 21 26 Death: 1219 |
|
6 years younger brother |
Hendrik van Vlaanderen Birth: 1176 Death: maybe poisoned at the instigation of his wife — June 11, 1216 |
|
-4 years himself |
Boudewijn IX van Vlaanderen Birth: July 1171 21 26 — Valence Death: imprisoned — after July 20, 1205 — Tarnowo, Bulgaria |
|
8 years younger sister |
Sibylle van Vlaanderen Birth: estimated as close to sibling(s) — about 1178 28 33 |
|
3 years younger brother |
Eustatius van Vlaanderen Birth: estimated as close to sibling(s) — about 1180 |
| Mother’s family with Raoul II. de Vermandois |
| step-father |
Raoul II. de Vermandois Birth: Lèpre (leprosy) — 1145 60 20 Death: leprosy — June 17, 1167 |
| mother |
Marguerite d'Alsace Birth: 1145 45 29 Death: 1194 — château de Male, Bruxelles, Belgium |
|
Marriage: 1160 — |
| Family with Marie de Champagne |
| himself |
Boudewijn IX van Vlaanderen Birth: July 1171 21 26 — Valence Death: imprisoned — after July 20, 1205 — Tarnowo, Bulgaria |
| wife |
Marie de Champagne Birth: estimated a gap of 25 years — about 1174 |
| daughter |
Joanna van Vlaanderen Birth: 1199 27 25 Death: December 5, 1244 — Marquette-lez-Lille |
|
3 years daughter |
Margaretha van Constantinopel Birth: June 2, 1202 30 28 Death: February 10, 1280 — Gent, Oost-Vlaanderen, Belgium |