Columbia subject headings:
Harvard subject headings:
Architects--Germany--Biography
Architecture, Baroque--Germany.
Erthal, Philipp Christoph von, Archbishop and Elector of Mainz, 1689-1748.
Germany--History--1517-1871.
Mainz (Rhineland-Palatinate, Germany)--History
Princeton subject headings:
Architects--Germany--Biography.
Architecture, Baroque--Germany.
Erthal, Philipp Christoph von und zu, 1689-1748.
Germany--History--1517-1871.
Mainz (Rhineland-Palatinate, Germany)--History.