Columbia subject headings:
Ernst Ludwig, Grand Duke of Hesse, 1868-1937.
Hesse (Germany)--History--1806-1918.
Princes--Germany--Hesse--Biography.
Harvard subject headings:
Ernst Ludwig, Grand Duke of Hesse, 1868-1937.
Hesse (Germany)--History--1806-1918.
Princes--Germany--Hesse--Biography.
Princeton subject headings:
Ernst Ludwig, Grand Duke of Hesse, 1868-1937.
Hesse (Germany)--History--1806-1918.
Princes--Germany--Hesse--Biography.