County of Boulogne
County of Boulogne | |||||||
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| 896–1477 | |||||||
County of Boulogne (upper left on map) in 1465–1477 | |||||||
| Status | Fief of the Kingdom of France | ||||||
| Capital | Boulogne | ||||||
| Historical era | Middle Ages | ||||||
• acquisition by the House of Flanders | 896 | ||||||
• incorporation into the crown lands of France | 1477 | ||||||
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The County of Boulogne was a county within the Kingdom of France during the 9th to 15th centuries, centred on the city of Boulogne-sur-Mer. It was ruled by the counts of Flanders in the 10th century, but a separate House of Boulogne emerged during the 11th century. It was merged into the County of Artois by Philip II of France in 1212 and eventually annexed to the royal domain itself in 1477.