Family name Ysabeau (Ysabeau 
) , around the globe, is an extremely rare cognomen. Much more frequently, Ysabeau is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Ysabeau | United Kingdom, South Africa, United States, Croatia, France |
| claude-alexandre ysabeau French politician (1754-1831), FR (b. 1754) |
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| alexandre victor frédéric ysabeau botanist (1793-1873) (b. 1793) |
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| louis-guillaume ysabeau French medallist, FR (b. 1799) |
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| ysabeau s. wilce American writer, US (b. 1950) |
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| ysabeau quatrebarbes |
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| ysabeau de la forest |
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| ysabeau d'anguerant |
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