Note 208 — Chapter IV · POLITICAL HERESY UTILIZED BY THE CHURCH.
Reading edition
Preger, Die Politik des Pabstes Johann XXII., München, 1885, pp. 6-10, 21.—Petrarchi Lib. sine Titulo Epist. xviii.—Raynald. ann. 1317, No. 27; ann. 1320, No. 10-14; ann. 1322, No. 6-8, 11.—Bernard. Corio, Hist. Milanese, ann. 1318, 1320, 1321-22.
A bull of John XXII., Jan. 28, 1322, ordering the sale of indulgences to aid the crusade of Cardinal Bertrand, recites the heresy of Visconti and his refusal to obey the summons for his trial as the reason for assailing him.—Regest. Clem. PP. V., Romæ, 1885. T. I. Prolegom. p. cxcviii.