Columbia subject headings:
Hartmann, von Aue, active 12th century. Gregorius.
Mann, Thomas, 1875-1955. Erwählte.
Harvard subject headings:
Hartmann, von Aue, active 12th century. Gregorius
Mann, Thomas, 1875-1955. Erwählte.
Princeton subject headings:
Hartmann, von Aue, 12th cent. Gregorius
Mann, Thomas, 1875-1955. Erwählte.