Columbia subject headings:
Altamirano, Ignacio Manuel, 1834-1893.
Mexico--Foreign relations--Germany--Prussia.
Prussia (Germany)--Foreign relations--Mexico.
Wagner, Emil, freiherr von.
Harvard subject headings:
Altamirano, Ignacio Manuel, 1834-1893.
Mexico--Foreign relations--Germany--Prussia.
Prussia (Germany)--Foreign relations--Mexico.
Wagner, Emil, freiherr von.
Princeton subject headings: