Columbia subject headings:
Composers--Germany--Biography.
Opera producers and directors--Germany--Biography.
Wagner, Cosima, 1837-1930.
Wagner, Richard, 1813-1883.
Wives--Germany--Biography.
Harvard subject headings:
Composers' spouses--Germany--Biography.
Composers--Germany--Biography
Opera producers and directors--Germany--Bayreuth--Biography.
Opera producers and directors--Germany--Biography.
Wagner, Cosima, 1837-1930.
Wagner, Richard, 1813-1883
Wives--Germany--Biography.
Princeton subject headings:
Composers--Germany--Biography.
Opera producers and directors--Germany--Biography.
Wagner, Cosima, 1837-1930.
Wagner, Richard, 1813-1883.
Wives--Germany--Biography.