Cognomen Coucy (קוסי 
, Coucy 
, Куси 
) , all around the world, is a very rare family name. The surname Coucy is habitual in Israel, where it is a rare surname, France, and Canada, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in France, Israel, and the United States. Very seldom, Coucy is the forename as well as the last name.
| aubrey de coucy Earl of Northumbria (b. 1050) |
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| enguerrand ier de coucy Enguerrand I, Lord of Coucy, FR (b. 1100) |
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| enguerrand ii de coucy (1110-1149), FR (b. 1110) |
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enguerrand iii de coucy Lord of France, FR (b. 1182) |
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| yolande de coucy (1164-1222) (b. 1164) |
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| agnès de coucy (1175-1214) (b. 1175) |
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enguerrand iv de coucy French noble, FR (b. 1228) |
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| thomas ii de coucy (1184-1253) (b. 1183) |
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enguerrand v de coucy French noble (b. 1243) |
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| moïse de coucy French rabbi., FR (b. 1200) |
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| félicité de coucy French noblewoman, FR (b. 1222) |
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| alix marie de coucy, dame de coucy (1225-1260) (b. 1225) |
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| guillaume i de coucy (1288-1335), FR (b. 1288) |
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| enguerrand vi de coucy Peerage person ID=39170, FR (b. 1313) |
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philippa de coucy English noblewoman (b. 1367) |
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