Last name Bertheau (Bertheau 
) , in the world, is quite a rare surname. The cognomen Bertheau is habitual in France, where it is quite a rare surname, Norway, where it is a rare surname, and Costa Rica. Measured by absolute frequency, it is the most numerous in France, Germany, and Mexico.
| VARIANT | COUNTRY |
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| Bertheau | Norway, Germany, Mexico, United States, France |
| thomas bertheau (b. 1542) |
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| rené bertheau (b. 1625) |
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| charles bertheau French minister (b. 1660) |
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| françois didier bertheau German dealer, died 1826 (b. 1734) |
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ernst bertheau German orientalist and theologian, DE (b. 1812) |
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| carl bertheau German theologian and educationist, DE (b. 1806) |
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| august bertheau DE (b. 1799) |
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therese bertheau Norwegian mountain climber, NO (b. 1861) |
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| friedrich bertheau (1829-1913), CH (b. 1829) |
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| carl bertheau German church historian and theologian, DE (b. 1836) |
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| meta luise bertheau SG (b. 1849) |
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| friedrich bertheau DE (b. 1851) |
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| georg bertheau DE (b. 1856) |
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| theodor bertheau (1869-1944), CH (b. 1869) |
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| paul bertheau German engineer, DE (b. 1873) |
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