(where was the standard of the cavalry of the commonwealth, which was borne by M. Jacopo del Nacca, a man of great valour, of the house of the Pazzi in Florence), that traitor of a M. Bocca degli Abati, which was in his troop and near to him, struck the said M. Jacopo with his sword, and cut off the hand with which he held the standard, and immediately he died. And this done, the horsemen and people, beholding the standard fallen, and that there were traitors among them, and that they were so strongly assailed by the Germans, in a short time were put to flight. But because the horsemen of Florence first perceived the treason, there were but thirty-six men of name of the cavalry slain and taken. But the great mortality and capture was of the foot soldiers of Florence, and of Lucca, and of Orvieto, because they shut themselves up in the castle of Montaperti, and were all taken; but more than 2,500 of them were left dead upon the field, and more than 1,500 were taken captive of the best of the people of Florence, from every house, and of Lucca, and of the other allies which were in the said battle. And thus was abased the arrogance of the ungrateful and proud people of Florence. And this was on a Tuesday, the 4th day of September, in the year of Christ 1260; and there was left the carroccio and the bell called Martinella, with an untold amount of booty, of the baggage pertaining to the Florentines and their allies. And thus was routed and destroyed the ancient Popolo of Florence, which had continued in so many victories and in great lordship and state for ten years. Sec. 79.--_How the Guelfs of Florence, after the said discomfiture, departed from Florence and went to Lucca._ [Sidenote: 1260 A.D.] [Sidenote: Cf. Inf. x. 48.]