Arnulf III. van VlaanderenAge: 16 years1055–1071
- Name
- Arnulf III. van Vlaanderen
Arnulfs III. der Unglückliche von Flandern
- Name
- Arnulfs III. der Unglückliche von Flandern
- Type
- also known as
| Birth | 1055 25 25 |
| Birth of a brother | Baudouin II. de Hainaut 1056 (Age 12 months) |
| Death of a paternal grandfather | Boudewijn V. de Grote van Vlaanderen September 1, 1067 (Age 12 years) |
| Death of a father | Boudewijn VI. van Vlaanderen July 17, 1070 (Age 15 years) |
| Occupation | Graf (count) |
| Death | in battle February 22, 1071 (Age 16 years) |
| Family with parents |
| father |
Boudewijn VI. van Vlaanderen Birth: 1030 17 21 Death: July 17, 1070 — Hasnon, Nord, Nord-Pas-de-Calais, France |
| mother |
Richilde de Hainaut Birth: estimated as equal to husband's birth year — about 1030 |
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Marriage: 1051 — |
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6 years younger brother |
Baudouin II. de Hainaut Birth: 1056 26 26 Death: I had 1108 — 1098 — Bithynië, Asia Minor |
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Arnulf III. van Vlaanderen Birth: 1055 25 25 Death: in battle — February 22, 1071 — Kassel, Hessen, Germany |
| Mother’s family with Herman van Bergen |
| step-father |
Herman van Bergen Birth: estimated as after parents' marriage — about 1029 34 27 Death: May 27, 1050 |
| mother |
Richilde de Hainaut Birth: estimated as equal to husband's birth year — about 1030 |
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Marriage: — |