Only three survived as theocracies : the Archbishopric of Regensburg and the lands of the Teutonic Knights and Knights of Saint John .
Regensburg was raised from a bishopric with the incorporation of the Archbishopric of Mainz .
Only three survived as theocracies : the Archbishopric of Regensburg , which was raised from a bishopric with the incorporation of the Archbishopric of Mainz , and the lands of the Teutonic Knights and Knights of Saint John .