Columbia subject headings:
Harvard subject headings:
Biographies.
Bishops--Germany--Biography
Catholic Church--Bishops--Biography.
Freising (Germany)--Church history.
Historians--Germany--Biography
Holy Roman Empire--History--Hohenstaufen, 1138-1254.
Holy Roman Empire--Intellectual life.
Otto I, Bishop of Freising, -1158.
Princeton subject headings:
Bishops--Germany--Biography.
Catholic Church--Bishops--Biography.
Historians--Germany--Biography.
Intellectuals--Germany--Biography.
Otto I, Bishop of Freising, -1158.