Columbia subject headings:
Amalric I, King of Jerusalem, 1136-1174.
Baudouin IV, King of Jerusalem, 1160-1185.
Jerusalem--History--Latin Kingdom, 1099-1244.
Harvard subject headings:
Baudouin IV, King of Jerusalem, 1160-1185
Crusades
Egypt--Kings and rulers
Jerusalem--Foreign relations.
Jerusalem--History--Latin Kingdom, 1099-1244
Jerusalem--Kings and rulers.
Saladin, Sultan of Egypt and Syria, 1137-1193
Syria--Kings and rulers
Princeton subject headings: