Jean was born in 1141, the son of Guy II de Masnières and Ide de Saint-Pôl. The place is not known.
He died on 30 JUN 1191 in Acre (Akkon), Galilee, Israël .
He had three marriages/partners. His first wife was Mathilde, who he married in ABT 1162. The place has not been found. They had no known children.
His second wife was Laure de Saint-Valéry. They were married, but the date and place have not been found. They had no known children.
His third wife was Béatrice Candaviaine de Saint-Pôl, who he married in ABT 1177. The place has not been found. Their five known children were Adèle (>1177-?), Guillaume III (>1179-1221), Marguerite (c1180-?), Agnès (1180-?) and Hélène (?-?).
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Jean I de Ponthieu |
Guy II de Masnières |
Guillaume de Ponthieu |
Robert II de Montgommery |
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Agnès de Ponthieu |
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Adélaïde de Bourgogne Duché |
Eudes I de Bourgogne |
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Sybille de Bourgogne |
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Ide de Saint-Pôl |
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| Event | Date | Details | Source | Multimedia | Notes | ||
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| Birth | 1141 |
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| Death | 30 JUN 1191 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
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| Nobility Title | FROM 1171 TO 1191 | comte de Ponthieu | ||||
| Nobility Title | comte de Montreuil |