Voltaire's blunder has been made part of a serious theory by Mons. E. Aroux, who gravely assures us that, during the Middle Ages, Tartar was only a cryptonym by which heretics knew each other, and adds: Il n'y a done pas trop à s'etonner des noms bizarres de Mastino et de Cane donnes d ces Della Scala. (Dante, heretique, revolutionnaire, et socialiste, Paris, 1854, pp. 118-120.) of Verona, or the length of his stay with him, may have been, it is certain that he was in Ravenna in 1320, and that, on his return thither from an embassy to Venice (concerning which a curious letter, forged probably by Doni, is extant), he died on September 14, 1321 (13th, according to others). He was buried at Ravenna under a monument built by his friend, Guido Novello.
If no monument at all was built by Guido, as is asserted by Balbo (Vita, I. Lib. II.
Cap. XVII.), whom De Vericour copies without question, we are at a loss to account for the preservation of the original epitaph replaced by