Columbia subject headings:
Harvard subject headings:
Baldwin I, King of Jerusalem, -1118.
Crusades--First, 1096-1099--Biography.
Jerusalem--History--Latin Kingdom, 1099-1244.
Jerusalem--Kings and rulers--Biography.
Princeton subject headings:
Baldwin I, King of Jerusalem, -1118.
Crusades--First, 1096-1099--Biography.
Jerusalem--History--Latin Kingdom, 1099-1244.
Jerusalem--Kings and rulers--Biography.