People Poland Stefan Siwiec peoplepill id: stefan-siwiecSS 7 views today 7 views this weekStefan SiwiecBiographyListsAlso ViewedListsStefan Siwiec is in following listsBy work and/or countryNotable Polish peopleGender:Male, Born in:Years 1850 to 1899By religionCatholic churchFrom our partnersSponsoredStefan Siwiec