Silesian Voivodeship is a province in southern Poland. In the early Middle Ages Silesia was part of Poland since the 10th century. When in 1138 the Seniorat of Poland was formed, Silesia was one of the Polish duchies and several Silesian duchies were Seniors of Poland until the late 13th century.
Sosnowiec - city located in the south of Poland in the Silesian Voivodeship. A county capital neighbouring Katowice, and a mining and industrial region, it was one of the largest cities in the Silesian Voivodeship and Upper Silesian Industry Area.
Nakło is a village in Silesia, in southern Poland. It lies approximately 8 kilometres south-east of Lelów, 46 km east of Częstochowa, 84 km north of Kraków 68 km north-east of the regional capital Katowice.