His rule however was denied by Louis' successors from the House of Habsburg, who suspiciously eyed the gain of power of the House of Hohenzollern in Silesia. After the 1620 Battle of White Mountain Emperor Ferdinand II of Habsburg took the opportunity to deprive Elector George Wiliam of Brandenburg of the rule over Bytom. It then remained a state country within the Habsburg Monarchy until its annexation by Prussia in 1742.