Lower Silesia is located mostly in the basin of the middle Oder River with its historic capital in Wrocław.. The southern border of Lower Silesia is mapped by the mountain ridge of the Western and Central Sudetes, which since the High Middle Ages formed the border between Polish Silesia and the historic Bohemian region of the present-day Czech Republic. . The Bóbr and Kwisa …

The Province of Silesia (German: Provinz Schlesien; Polish: Prowincja Śląska; Silesian: Prowincyjŏ Ślōnskŏ) was a province of Prussia from 1815 to 1919. The Silesia region was part of the Prussian realm since 1740 and established as an official province in 1815, then became part of the German Empire in 1871. In 1919, as part of the Free State of Prussia within Weimar …