Example image of eyePlorer eyePlorer map for 'Thirty Years' War': Thirty Years War (disambiguation) Catholicism Holy Roman Empire Protestantism Power in international relations France-Habsburg rivalry House of Habsburg Bellum se ipsum alet Famine Low Countries National bankruptcy Regional power Mercenary Peace of Westphalia Charles V, Holy Roman Emperor First Diet of Speyer Lutheranism Peace of Augsburg Cuius regio, eius religio Prince-Bishop Peace of Passau Reservatum ecclesiasticum Calvinism Southern Netherlands Spanish Road Dutch Revolt France Baltic Sea Denmark Sweden Archduchy of Austria Bohemia Hungary Archbishopric of Trier Bavaria Electoral Palatinate Electorate of Saxony Landgraviate of Hesse Margraviate of Brandenburg Württemberg Free city Diocese Cologne War Gebhard Truchsess von Waldburg Ernest of Bavaria Würzburg Danube Rhine Ferdinand I, Holy Roman Emperor Matthias, Holy Roman Emperor