Habsburg Religious Politics in Croatian and Slavonian Military Frontier During the Thirty Years War

The author analyzes the impact of the Thirty Years War on the ecclesiastical policies of the Vienna Court in the Military Frontier, particularly in relation to the Roman Curia’s plans to support the ecclesiastical union of Orthodox Frontiersmen (“Vlachs”) with the Catholic Church. He emphesises the role of the bishops of Zagreb bishopric and representatives of the Roman Curia in this process, and describes the reactions of Orthodox Frontiersmen (“Vlachs”) and Habsburg military authorities to the proposals made by Catholic representatives.