^Rosalind B. Brooke. The Coming of the Friars (1974) sets Arnold in the broader intellectual history that culminated in the thirteenth-century institutions of the mendicant friars.
^Foxe's Book of Martyrs lists him as a martyr: http://www.ccel.org/f/foxe/martyrs/fox106.htm
^Russell, Jeffrey Burton (1992). Dissent and Order in the Middle Ages: The Search for Legitimate Authority. Wipf & Stock publishers. P.37
^Constant J. Mews, "The Council of Sens (1141): Abelard, Bernard, and the Fear of Social Upheaval" Speculum 77.2 (April 2002:342–382).
^"Catholic Encyclopedia: Arnold of Brescia". www.newadvent.org. Retrieved 2022-02-03.
^"Philip Schaff: History of the Christian Church, Volume V: The Middle Ages. A.D. 1049–1294 – Christian Classics Ethereal Library". www.ccel.org. Retrieved 2022-02-03.
^"Philip Schaff: History of the Christian Church, Volume V: The Middle Ages. A.D. 1049–1294 – Christian Classics Ethereal Library". www.ccel.org. Retrieved 2022-02-03.