Columbia subject headings:
Harvard subject headings:
Elite (Social sciences)--Spain--Castile.
Families--Spain--Castile--History.
Nobility--Spain--Castile--History.
Princeton subject headings:
Inheritance and succession--Spain--Castile--History.
Kinship--Spain--Castile--History.
Marriage customs and rites, Medieval.
Marriage customs and rites--Spain--Castile--History.
Nobility--Spain--Castile--History.
Social structure--Spain--Castile--History.