* France, John (2015). "The Battle of Bouvines 27 July 1214". In Halfond, Gregory I. (ed.). The Medieval Way of War: Studies in Medieval Military History in Honor of Bernard S. Bachrach. Farnham, Surrey: Ashgate Publishing. pp. 251–271. ISBN978-1-4724-1958-3.
”...major victories such as Sluis (1340) and Winchelesea (1350)...” Steven Gunn; Armand Jamme (2015). "Kings, Nobles and Military Networks". In Christopher Fletcher; Jean-Philippe Genet; John Watts (eds.). Government and Political Life in England and France, c.1300–c.1500. Cambridge University Press. p. 48. ISBN978-1-107-08990-7.
Lawson, M. K. (1984). "The Collection of Danegeld and Heregeld in the Reigns of Aethelred II and Cnut". The English Historical Review. 99 (393): 721–738. doi:10.1093/ehr/XCIX.CCCXCIII.721. JSTOR569175.
Lawson, M. K. (1984). "The Collection of Danegeld and Heregeld in the Reigns of Aethelred II and Cnut". The English Historical Review. 99 (393): 721–738. doi:10.1093/ehr/XCIX.CCCXCIII.721. JSTOR569175.
Sydney Anglo, "Ill of the dead: The posthumous reputation of Henry VII", Renaissance Studies 1 (1987): 27–47. online
Derek Hirst, "Locating the 1650s in England's seventeenth century" History (1996) 81#263 pp 359–83 online
kortlandt.nl
Kortlandt, Frederik (2018). "Relative Chronology"(PDF).: "The second migration, which attracted incomers from other Germanic tribes, offers a different picture for Northumbria, and more specifically Bernicia, where there was a noticeable Celtic contribution to art, culture and possibly socio-military organisation. It appears that the immigrants took over the institutions of the local population here."
Dark, Ken R. (2003). "Large-scale population movements into and from Britain south of Hadrian's Wall in the fourth to sixth centuries AD"(PDF).: "In fact, part of eastern Britain may have already been losing a significant portion of its rural population, as evidence from East Anglia – amassed and analyzed by local archaeologists – may suggest. In this area at least, and possibly more widely in eastern Britain, large tracts of land appear to have been deserted in the late fourth century, possibly including whole "small towns" and villages. This does not seem to have been a localised change in settlement location, size or character but genuine desertion ... The areas where we have most indications of an intrusive Germanic culture are precisely those where we have most evidence of late fourth-century abandonment."
Morris, John E. (1901). The Welsh Wars of Edward I. a Contribution to Mediaeval Military History, Based on Original Documents. Oxford, UK: Clarendon Press. OCLC562375464.
From the 1944 Clark lectures by C. S. Lewis; Lewis, English Literature in the Sixteenth Century (Oxford, 1954) p. 1, OCLC256072