Tham khảo Heinrich IV của Thánh chế La Mã

  1. ↑ The Reform of the Church, J.P. Whitney, The Cambridge Medieval History, Vol. V, ed. J.R. Tanner, C.W. Previte-Orton, Z.N. Brooke, (Cambridge University Press, 1968), 31.
  2. ↑ Germany under Henry IV and Henry V, Z.N. Brooke, The Cambridge Medieval History, Vol. V, 116.
  3. ↑ Bertha in the meantime had retired to the Abbey of Lorscheim.
  4. ↑ Religion and the Rise of Western Culture by Christopher Dawson, Image Books Doubleday (1950), pages 129-133
  5. ↑ John France (1996). Victory in the East (Book extract). ISBN 9780521589871. Godfrey was almost certainly present in support of Henry IV at the battle of Elster in 1080 (sic 1085), when the forces of the anti-king Rudolf triumphed on the field only to see their victory nullified because Rudolf was killed 
  6. ↑ Donald J.Kagay, L.J.Andrew Villalon (tháng 1 năm 2003). Crusaders, Condottieri, and Cannon: Medieval Warfare in Societies Around the World. ISBN 9004125531. Truy cập ngày 5 tháng 6 năm 2008. One of two brief accounts of the battle of Volta reports it occurred on the same day as the battle of Elster (15 October 1080) in which Rudolf was fatally wounded. 
  7. ↑ J. Norwich, Byzantium: The Decline and Fall, 21
  8. 1 2 Gregory VII and the first Contest between Empire and Papacy, Z.N. Brooke, The Cambridge Medieval History, Vol. V, 79.
  9. ↑ Smail, Daniel Lord. Gibson, Kelly. Vengeance in Medieval Europe: A Reader University of Toronto Press, 1 jan. 2009 ISBN 978-1442601260 p 156
  10. ↑ Luscombe, David. Riley-Smith, Jonathan. The New Cambridge Medieval History: Volume 4, C.1024-c.1198 Cambridge University Press, 14 okt. 2004 ISBN 978-0521414111 p 398
  11. ↑ Afro
  12. ↑ Germany under Henry IV and Henry V, Z.N. Brooke, The Cambridge Medieval History, Vol. V, 151.
Các vị vua nước Đức
Vương quốc Đức (843-1806)
Liên bang Rhein (1806-1813)
Liên minh Đức (1815-1848)
Đế quốc Đức (1849-1813)
Friedrich Wilhelm IV (emperor-elect)
Liên bang Đức (1849-1850)
Liên minh Đức (1850-1866)
Liên minh Bắc Đức (1867-1871)
Đế quốc Đức (1871-1918)
Wikimedia Commons có thêm hình ảnh và phương tiện truyền tải về Heinrich IV của Thánh chế La Mã.