Note 1 — CANTO XXVIII.
Charles Eliot Norton translation
In 1215 one of the Buondelmonti, plighted to a maiden of the Amidei, broke faith, and engaged himself to a damsel of the Donati. The family of the girl who had been thus slighted took counsel how to avenge the affront, and Mosca de’ Lamberti gave the ill advice to murder the young Buondelmonte. The murder was the beginning of long woe to Florence, and of the division of her people into Guelphs and Ghibellines.