Reichsfürst
While the Přemyslid Dukes of Bohemia obtained the status of immediate Princes of the Holy Roman Empire, their rule was disrupted by internal dynastical struggles: during the rivalry between Duke Boleslaus III and his brother Jaromir in 1003, the Polish duke Bolesław I the Brave invaded Bohemia, but had to pull back the next year, facing the forces of King Henry II of Germany. In turn the Bohemian duke Bretislaus I campaigned the adjacent northern territory of Silesia in 1039. An armistice mediated by Emperor Henry III in 1054 demarcated the spheres of influence, leaving Kłodzko with Bohemia.