Mahaut de ChâtillonAge: 43 years1335–1378
| Birth | 1335 |
| Birth of a son #1 | Jean de Luxembourg 1370 (Age 35 years) |
| Death of a husband | Guy de Luxembourg August 23, 1371 (Age 36 years) |
| Death | 1378 (Age 43 years) |
| Title | Comtesse de Saint-Pol |
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Mahaut de Châtillon Birth: 1335 Death: 1378 |
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| Media object | Format: image/png Image dimensions: 931 × 1,024 pixels File size: 221 KB Type: Coat of arms Note: burelé d’argent et d’azur de dix pièces, au lion de gueules, armé, lampassé et couronné d’or brochant sur le tout |