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Name days
Name: Sylwin
| Country | Month | Day | Name days |  Poland | February | 17 | Donat, Donata, Franciszek, Izydor, Julian, Konstanty, Łukasz, Niegomir, Sylwin, Zbigniew, Zbyszko | | Poland | September | 12 | Amadeusz, Amedeusz, Cyrus, Gwidon, Maria, Piotr, Radzimir, Sylwin | | Poland | September | 28 | Jan, Laurencjusz, Luba, Lubosza, Marek, Nikita, Salomon, Sylwin, Wacław, Wacława, Wawrzyniec, Więcesław |
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