County of Kladsko
In December 1740 the Prussian Army under King Frederick the Great invaded Habsburg Silesia and also occupied the County of Kladsko; while they were largely welcomed by the Protestant population of Silesia, Kladsko remained a suspiciously eyed Catholic area. By the 1742 Treaty of Berlin, again confirmed by the 1763 Peace of Hubertusburg, the Habsburg empress Maria Theresa ceded Kladsko to the Kingdom of Prussia.