Wilhelm Janssen, 'Heinrich von Virneburg, archbishop, 1244-1332' trans. by Sarah Whitten,
in International Encyclopaedia for the Middle Ages-Online. A Supplement to LexMA-Online.
Turnhout: Brepols Publishers, 2014, in Brepolis Medieval Encyclopaedias <http://www.brepolis.net.acces-distant.bnu.fr>
(first publ. in Die Bischöfe des Heiligen Römischen Reiches 1198-1448, by Erwin Gatz
(Berlin: Duncker & Humblot, 2001), pp. 277-279))