Tham khảo Friedrich_I_của_Đế_quốc_La_Mã_Thần_thánh
Tài liệu chính
Otto of Freising and his continuator Rahewin, The deeds of Frederick Barbarossa tr. Charles Christopher Mierow with Richard Emery. New York: Columbia University Press, 1953. Reprinted: Toronto: University of Toronto Press, 1994.
The "Bergamo Master". Carmen de gestis Frederici I imperatoris in Lombardia.
Tài liệu phụ
Haverkamp, Alfred. Friedrich Barbarossa, 1992
Novobatzky, Peter and Ammon Shea. Depraved and Insulting English. Orlando: Harcourt, 2001
Munz, Peter. "Frederick Barbarossa: A Study in Medieval Politics". Cornell University Press, Ithaca and London, 1969
Opll, Ferdinand. Friedrich Barbarossa, 1998
Reston, James. Warriors of God, 2001
Walford, Edward, John Charles Cox, and George Latimer Apperson. "Digit Folklore part II". The Antiquary: A Magazine Devoted to the Study of the Past 1885 Volume XI: January-June.
