The deeds of Frederick Barbarossa /
Otto,I,Bishop of Freising,-1158.
Rahewin,-approximately 1177.
Mierow, Charles Christopher,1883-1961.
New York, N.Y. : Columbia University Press,
c2004.
Includes bibliographical references (p. [341]-346) and index.
Frederick, I, Holy Roman Emperor, approximately 1123-1190.