Columbia subject headings:
Ulrich, von Lichtenstein, approximately 1200-1275 or 1276. Frauendienst.
Harvard subject headings:
Ulrich, von Lichtenstein, approximately 1200-1275 or 1276. Frauendienst.
Princeton subject headings:
Lichtenstein, Ulrich von, fl. 1255. Frauendienst.