Cognomen Fiedorowicz (Fiedorowicz 
) , worldwide, is quite a rare family name. The surname Fiedorowicz is characteristic of Poland, where it is quite a rare surname, Czechia, where it is a rare surname, and Australia. Measured by absolute frequency, it is the most numerous in Poland, the United States, and the United Kingdom. More prevalently, Fiedorowicz is the forename as well as the last name.
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| Fiedorowicz | Argentina, United Kingdom, United States, Germany, Poland |
| józef fiedorowicz LT (b. 1777) |
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józef fiedorowicz cavalry master of the Polish Cavalry, PL (b. 1897) |
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| jerzy fiedorowicz (b. 1888) |
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| stanisław fiedorowicz Polish athletics competitor, PL (b. 1904) |
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| antoni fiedorowicz BY (b. 1905) |
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| irena fiedorowicz-fabrycy PL (b. 1930) |
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c. j. fiedorowicz American football player, US (b. 1991) |
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| maria fiedorowicz (born 1950) (b. 1950) |
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| ludwik fiedorowicz (b. 1948) |
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| czesław fiedorowicz Polish politician, PL (b. 1958) |
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| mirosław fiedorowicz PL (b. 1956) |
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| michael fiedorowicz Peerage person ID=329690 |
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| katarzyna fiedorowicz researcher, PL |
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| michał fiedorowicz researcher ORCID ID = 0000-0001-5755-3608, PL |
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| henryk fiedorowicz researcher, PL |
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