Rujukan Henry_IV_dari_England

  1. Ian Mortimer, "Henry IV's Date of Birth and the Royal Maundy", Historical Research, vol. 80 (2007), pp. 567–576)
  • Ian Mortimer, The Fears of Henry IV: the Life of England's Self-Made King (Jonathan Cape, 2007)
  • Peter McNiven, "The Problem of Henry IV's Health, 1405–1413", English Historical Review, 100 (1985), pp 747–772
  • ANTIQUARY s9-IX (228): 369. (1902)
  • Swanson, R. N. (1995). Religion and Devotion in Europe, c. 1215-c. 1515. Cambridge Medieval Textbooks. Cambridge, UK: Cambridge University Press. ISBN 0-521-37950-4