Columbia subject headings:
Civilization, Medieval.
Families--Germany--History.
Germany--Social conditions.
Kinship--Germany--History.
Nobility--Germany--History.
Harvard subject headings:
Germany--History--1273-1517.
Germany--Social life and customs.
Kinship--Germany--History.
Nobility--Germany--Family relationships--History.
Princeton subject headings:
Families--Germany--History.
Germany--Social conditions.
Kinship--Germany--History.
Nobility--Germany--History.