Columbia subject headings:
Catholic Church. Archdiocese of Cologne (Germany)--History.
Germany--Church history--19th century.
Spiegel, Ferdinand August, Graf von Desenberg, 1764-1835.
Wessenberg, Ignaz Heinrich von, 1774-1860.
Harvard subject headings:
Catholic Church. Archdiocese of Cologne (Germany)--History.
Catholic Church. Diocese of Cologne. Archbishop (1824-1835 : Spiegel)
Germany--Church history--19th century.
Spiegel, Ferdinand August, Graf zum Desenberg, Abp. of Cologne, 1764-1835.
Wessenberg, Ignaz Heinrich von, 1774-1860
Princeton subject headings: