Columbia subject headings:
Germany--Kings and rulers.
Hohenzollern, House of.
Marriages of royalty and nobility--Germany.
Harvard subject headings:
Germany--Kings and rulers.
Hohenzollern, House of.
Kinship--Europe--History.
Marriages of royalty and nobility--Europe--History.
Marriages of royalty and nobility--Germany.
Royal weddings--Political aspects--Europe--History.
Princeton subject headings:
Germany--Kings and rulers.
Hohenzollern, House of.
Marriages of royalty and nobility--Germany.
Prussia (Germany)--Kings and rulers.