Columbia subject headings:
Austria--Biography--Dictionaries.
Austria--Kings and rulers--Biography--Dictionaries.
Habsburg, House of--Dictionaries.
Harvard subject headings:
Austria--Kings and rulers--Biography--Dictionaries.
Habsburg, House of--Dictionaries.
Nobility--Austria--Biography--Dictionaries.
Princeton subject headings:
Austria--Kings and rulers--Biography--Dictionaries.
Habsburg, House of--Dictionaries.
Nobility--Austria--Biography--Dictionaries.