Oliwier Kowalik
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Wałcz, Poland, is a football birthplace worth noting — 5 association football players on Wikidata list the city as their place of birth. The most notable are Aleksander Ptak, Oliwia Szperkowska and Ryszard Mrozek. Among them are 4 male and 1 female players. Birth years range from 1954 to 2001.