2016-04-10 Verein für Computergenealogie http://gov.genealogy.net/object_1074024 21.344635559322032 53.71922189830508 1999-01-01 https://pl.wikipedia.org/wiki/Piecki_(gmina) http://gminapiecki.pl/ pol Piecki 1999-01-01 http://gov.genealogy.net/object_1074024/about.rdf