Cognomen Merveilleux (Merveilleux 
) , in the entire world, is a rare family name. The surname Merveilleux is habitual in France, where it is a rare surname, Algeria, and Morocco, where it is a very rare surname. More frequently, Merveilleux is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Merveilleux | Morocco, France, United Kingdom, Democratic Republic of the Congo, Algeria |
| simon merveilleux (1600-1684), CH (b. 1600) |
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| david françois de merveilleux (b. 1652) |
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| david-françois de merveilleux (b. 1682) |
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| guillaume de merveilleux CH (b. 1803) |
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jean marie benjamin merveilleux du vignaux French military personnel (1865-1930), FR (b. 1865) |
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| pierre-émile merveilleux du vignaux magistrate and senior French official of the 19th century, FR (b. 1825) |
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| jean de merveilleux CH |
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