Cognomen De Courtenay (De Courtenay 
) , in the entire world, is a very rare family name. The cognomen De Courtenay is characteristic of France, where it is a very rare surname, Australia, and the United States, where it is an extremely rare surname.
| joscelin de courtenay (born 1034) (b. 1034) |
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pierre ier de courtenay youngest son of Louis VI of France and his second queen consort, Adélaide de Maurienne (1126-1183), FR (b. 1126) |
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| renaud de courtenay British noble (b. 1100) |
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pierre ii de courtenay Latin Emperor of Constantinople, FR (b. 1155) |
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| elisabeth de courtenay (1127-1205) (b. 1140) |
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robert de courtenay Latin Emperor of Constantinople, FR (b. 1201) |
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beatrix de courtenay (b. 1200) |
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pierre de courtenay French nobleman, Crusader and Lord of Conches and Mehun, FR (b. 1218) |
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| robert ier de courtenay-champignelles French politician, FR (b. 1168) |
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| agnès de courtenay (1202-1247), FR (b. 1202) |
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| marie de courtenay Byzantine empress (b. 1204) |
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catherine de courtenay Emperor of Latin Constantinople (1274-1307), FR (b. 1274) |
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| robert de courtenay (1224-1279) (b. 1224) |
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| jean ier de courtenay-champignelles (1226-1270), FR (b. 1226) |
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| amicie de courtenay French noblewoman, IT (b. 1250) |
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