[16] Vit. Nuov. p. 61, ed. Pesaro, 1829.
[17] Tratt. III. Cap. XI.
[18] Letter of Dante, now lost, cited by Aretino.
[19] Inferno, XXI. 94.
[20] Balbo, Vita di Dante, Firenze, 1853, p. 117.
[21] Life and Times of Dante, London, 1858, p. 80.
[22] Notes to Spenser's "Shepherd's Calendar."
[23] See the story at length in Balbo, Vita di Dante, Cap. X.
[24] Thus Foscolo. Perhaps it would be more accurate to say that at first the blacks were the extreme Guelphs, and the whites those moderate Guelphs inclined to make terms with the Ghibellines. The matter is obscure, and Balbo contradicts himself about it.
[25] Secolo di Dante, p. 654. He would seem to have been in Rome during the Jubilee of 1300. See Inferno, XVIII. 28-33.