In March 1741 it was captured in a night attack by the Prussian Army under General Prince Leopold II of Anhalt-Dessau, and like the majority of Silesia became part of Prussia under King Frederick II. The city became known by the Germanized name of Groß-Glogau ("Greater Glogau") to differentiate it from the town of Oberglogau ("Upper Glogau", present-day Głogówek) in Upper Silesia. Despite Germanisation attempts, the population of the area around Głogów was still largely Polish.[2]