Briefly under the rule of the House of Jagiellon in personal union with the Kingdom of Hungary until the Battle of Mohacs, the Bohemian Lands were afterwards ruled in personal union with the Kingdom of Hungary and the Archduchy of Austria by the Habsburg Holy Roman Emperors, finally ceasing "de facto" (but not "de jure") to exist as a separate realm and becoming a part of the Habsburg Monarchy, in the aftermath of crushing the Bohemian Revolt in the Battle of White Mountain. After another century, the bulk of the region was severed from the rest of the Lands of the Bohemian Crown, when the Habsburg Monarchy lost the Silesian Wars to the Kingdom of Prussia under Frederick the Great, thus being forced to cede most of it (excluding Austrian Silesia) in the Treaties of Breslau and Berlin, as well as the strategically important Kłodzko Land, a part of the core territory of the Kingdom of Bohemia. The latter area continued, however, to form a part of the Roman Catholic Archdiocese of Prague until 1972.