Rujukan Frederick I, Maharaja Suci Rom

  1. Peter Moraw, Heiliges Reich, in: Lexikon des Mittelalters, Munich & Zurich: Artemis 1977–1999, vol. 4, pp. 2025–28.
  2. Templat:Harvp
  3. 1 2 3 4 5 6 7 Gislebertus (of Mons), Chronicle of Hainaut, transl. Laura Napran, (Boydell Press, 2005), 55 note245.
  4. Templat:Harvp

Sumber primer

Sumber sekunder

  • Brady, Charles Townsend (1901). Hohenzollern; a Story of the Time of Frederick Barbarossa. New York: The Century Co. 
  • Brown, R. A. (1972). The Origins of Modern Europe. Boydell Press. 
  • Bryce, James (1913). The Holy Roman Empire. MacMillan. 
  • Canduci, Alexander (2010). Triumph & Tragedy: The Rise and Fall of Rome's Immortal Emperors. Pier 9. ISBN 978-1-74196-598-8
  • Cantor, N. F. (1969). Medieval History. Macmillan and Company. 
  • Comyn, Robert (1851). History of the Western Empire, from its Restoration by Charlemagne to the Accession of Charles V. I
  • Crowley, John William (2006). Little, Big. New York: Perennial. ISBN 978-0-06-112005-3
  • Dahmus, J. (1969). The Middle Ages, A Popular History. Garden City, NY: Doubleday. 
  • Davis, R. H. C. (1957). A History of Medieval Europe. Longmans. 
  • Falco, G. (1964). The Holy Roman Republic. New York: Barnes and Co. 
  • Freed, John (2016). Frederick Barbarossa: The Prince and the Myth. New Haven, CT: Yale University Press. ISBN 978-0-300-122763
  • Jarausch, K. H. (1997). After Unity; Reconfiguring German Identities. New York: Berghahn Books. ISBN 1-57181-041-2
  • Kershaw, Ian (2001). Hitler, 1936–45: Nemesis. Penguin. 
  • Le Goff, J. (2000). Medieval Civilization, 400–1500. New York: Barnes and Noble. 
  • Leyser, Karl J. (1988). Frederick Barbarossa and the Hohenstaufen Polity. University of California Press. 
  • Munz, Peter (1969). Frederick Barbarossa: a Study in Medieval Politics. Ithaca and London: Cornell University Press. 
  • Novobatzky, Peter; Shea, Ammon (2001). Depraved and Insulting English. Orlando: Harcourt. 
  • Walford, Edward; Cox, John Charles; Apperson, George Latimer (1885). "Digit folklore, part II". The Antiquary. XI: 119–123. 

Rujukan

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