Austrian Silesia

Austrian Silesia, officially the Duchy of Upper and Lower Silesia, was an autonomous region of the Kingdom of Bohemia and the Habsburg monarchy (from 1804 the Austrian Empire, and from 1867 the Cisleithanian portion of Austria-Hungary). It is largely coterminous with the present-day region of Czech Silesia (with a smaller part in Poland) and was, historically, part of the larger Silesia region.