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Family name Siwczynska (Siwczynska ) , around the world, is a very rare cognomen. The last name Siwczynska is habitual in Eastern Europe, particularly Poland, where it is a rare surname. More prevalently, Siwczynska is the forename as well as the last name.
VARIANT | COUNTRY |
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Siwczynska | Poland |
Ewa, Zofia, Barbara, Krystyna, and Stanislawa