Cognomen Bartoszewicz (Bartoszewicz 
, Барташэвіч, Бартошевич 
) , around the globe, is quite a rare surname. The last name Bartoszewicz is characteristic of Poland, where it is quite a rare surname, Belarus, and Lithuania, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Eastern Europe, particularly Poland, Belarus, and Russia. Likewise, Bartoszewicz is the forename as well as the last name.
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| Bartoszewicz | United States, United Kingdom, Germany, Poland, Canada |
| Бартошевич | Kazakhstan, Ukraine, Belarus, Russia |
| antoni bartoszewicz (b. 1710) |
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julian bartoszewicz Polish historian, PL (b. 1821) |
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kazimierz bartoszewicz Polish writer and historian, PL (b. 1852) |
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| adam mateusz bartoszewicz PL (b. 1794) |
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| zygmunt bartoszewicz LT (b. 1798) |
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| dominik bartoszewicz (b. 1801) |
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joachim stefan bartoszewicz Polish lawyer, politician, PL (b. 1867) |
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stefan bartoszewicz PL (b. 1870) |
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| włodzimierz bartoszewicz Polish artist (1899-1983), PL (b. 1899) |
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| tadeusz bartoszewicz Polish physician, surgeon, PL (b. 1920) |
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| zygmunt bartoszewicz Polish politician and deputy, PL (b. 1936) |
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| bolesław bartoszewicz PL (b. 1927) |
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| albert bartoszewicz Polish linguist, PL (b. 1942) |
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| jarosław bartoszewicz Polish mathematician, PL (b. 1945) |
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| tomasz bartoszewicz (b. 1947) |
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