Last name Ritzenthaler (Ritzenthaler 
) , all over the world, is quite a rare cognomen. The family name Ritzenthaler is habitual in Western Europe, particularly France, where it is quite a rare surname, Germany, where it is a rare surname, and Switzerland. Not in comparison with a country's population, it most frequently occurs in France, the United States, and Germany.
| VARIANT | COUNTRY |
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| Ritzenthaler | Germany, Switzerland, France, United States, United Kingdom |
| georg ritzenthaler (b. 1796) |
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| joseph emil ritzenthaler DE (b. 1847) |
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| eugène ritzenthaler French politician (1906-1986), FR (b. 1906) |
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| robert eugene ritzenthaler (b. 1911) |
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mary lynn ritzenthaler American archivist, US |
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| leon ritzenthaler (1938-2009), US (b. 1938) |
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| jeffrey d ritzenthaler researcher (ORCID 0000-0003-0511-1992) |
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| jeffrey d ritzenthaler researcher ORCID 0000-0003-0072-4757 |
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| christophe ritzenthaler researcher |
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| maria ritzenthaler |
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| albert ritzenthaler |
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| christophe ritzenthaler |
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| thomas ritzenthaler researcher |
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