The Monarchia Controversy: An Historical Study with Accompanying Translations of Dante Alighieri's Monarchia, Guido Vernani's Refutation of the "Monarchia" Composed by Dante, and Pope John XXII's Bull Si Fratrum Monarchia Controversy An Historical Study with Accompanying Translations of Dante Alighieri's Monarchia, Guido Vernani's Refutation of the Monarchia Composed by Dante and Pope John XXII's Bull, Si Fratrum by Anthony K. Cassell | Menrva Books