the Prussian bishops, but it did not take place. References Allgemeine Deutsche Biographie: at Wikisource :de:s:ADB:Johann VI. Ambundii Regesta Imperii, University of Giessen - online version 14th-century births 1424 deaths 15th-century Roman Catholic archbishops in Livonia Clergy from Szczecin Archbishops of Riga Prince-bishops in Livonia Bishops of Chur Prince-bishops in the Holy Roman Empire