Family name Trau (Trau 
) , in the entire world, is a rare cognomen. The surname Trau is habitual in Israel, where it is a rare surname, Belgium, and Australia. Not in comparison with a country's population, the name is most common in Germany, the United States, and Vietnam. More frequently, Trau is the forename as well as the last name.
| carl trau merchant and art collector (b. 1811) |
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| franz trau merchant, numismatist and art collector (b. 1842) |
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| franz trau (b. 1881) |
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| trau ma (b. 1952) |
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| guillaume trau researcher |
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| dieter trau researcher |
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| raymond n c trau researcher |
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| matt trau chemist and nanotechnologist |
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| henri trau researcher |
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