Columbia subject headings:
Harvard subject headings:
Art metal-work, Medieval--Germany--Cappenberg--12th century.
Cappenberger Barbarossakopf.
Frederick I, Holy Roman Emperor, approximately 1123-1190--Art.
Holy Roman Empire--History--Frederick I, 1152-1190.
Reliquaries, Gothic--Germany--Cappenberg--12th century.
Princeton subject headings:
Art metal-work, Medieval--Germany--Cappenberg--12th century.
Art.
Cappenberger Barbarossakopf.
Frederick I, Holy Roman Emperor, approximately 1123-1190--Art.
Holy Roman Empire--History--Frederick I, 1152-1190.
Reliquaries, Gothic--Germany--Cappenberg--12th century.
Speeches.