Augustinus Triumphus (Italian: Agostino Trionfo; 1243 – 2 April 1328), also known as Augustinus of Ancona, was a Hermit of St. Augustine and writer. He is celebrated for his work Summa de potestate ecclesiastica, printed in 1473. The Summa became a standard reference for papalist arguments in the later 16th century, and was several times reprinted.
- Summa de potestate ecclesiastica. Arnold ter Hoernen, Cologne 26.I.1475 digital
- Wilks, Michael (1963). The Problem of Sovereignty in the Later Middle Ages: Papal Monarchy with Augustinus Triumphus and the Publicists. Cambridge: Cambridge University Press. pp. 4–5.
- William J. Bouwsma (1968). Venice and the Defense of Republican Liberty (illustrated ed.). University of California Press. p. 312. ISBN 0-520-00151-6.
- Wilks, M. J. (1957). "Augustinus Triumphus and the Papal Vicariate of Christ: II". The Journal of Theological Studies. 8 (2): 271. JSTOR 23960817.