Mackail 1901, pp. 280–288; Thompson 1955, pp. 151–153; MacCarthy 1994, pp. 323–324. Mackail, J.W. (1901). The Life of William Morris: Volume One (new ed.). London, New York, and Bombay: Longmans, Green & Co. Thompson, E.P. (1955). William Morris: Romantic to Revolutionary. London: Lawrence & Wishart. MacCarthy, Fiona (1994). William Morris: A Life for Our Time. London: Faber. ISBN0-571-14250-8.
coinarchives.com
In reality, coins of Maximus' son Flavius Victor sometimes depict a tower on the reverse, but whether this inspired the legend about the castles his father built is unknown.Coin of Flavius Victor
doi.org
Roberts, Brynley F. (1976). "Geoffrey of Monmouth and Welsh Historical Tradition". Nottingham Medieval Studies. 20: 29–40. doi:10.1484/j.nms.3.74.
Bane, Theresa (2013-08-28). Encyclopedia of fairies in world folklore and mythology. Jefferson, North Carolina. p. 218. ISBN978-1476612423. OCLC857489871.{{cite book}}: CS1 maint: location missing publisher (link)