In the legend the nomenclature of Tuscan cities is always explained on the same principles, Pisa, for instance, being derived from _pesare_ (to weigh). For the Romans received their tributes there, and these were so numerous that they had to be weighed in two different places. This is why they spoke of the city in the plural, _Pisae Pisarum_. Lucca comes from _lucere_ (to shine), because it was the first city converted to the light of Christianity. When the Franks[52] marched against the Longobards in the South they halted at a place in central Italy, and left all their aged people behind them. Thus the city built on that site received the name, likewise in the plural, of _Senae Senarum_. Florence, however, according to the legend, derived its name from Fiorinus, although later writers declared it to be taken from the word _Fluentia_, because it stood by the river Arno; others, again, from the numerous flowers springing from its soil. It was built in the likeness of Rome, with a capitol, forum, theatre, and baths, and was consequently called Little Rome. Its friends are always the friends of Rome; the foes of the one are foes of the other. After five hundred years, so runs the legend, _Totila flagellum Dei_ came and destroyed Florence, and immediately rebuilt the rival city of Fiesole. This clearly alludes to Attila, since he bore the title of _flagellum Dei_, and in the Middle Ages was the real type of the devastator and destroyer of cities. As he never came to Florence he was converted into Totila, who had been there, although never designated by the same appellation. This exchange of names was aided by their resemblance, nor is it the sole example the Middle Ages afford of the confusion of Attila with Totila. In the "Divina Commedia" ("Inferno," xiii. 148-9) we find Dante attributing the destruction of Florence to Attila, when he says: "Quei cittadin che poi la rifondarno Sovra il cener che d'Attila rimase." And hereby he doubly deserts the legend; for, according to that, Florence was rebuilt by the Romans and then, naturally, on the pattern of Christian Rome, with churches dedicated to St. Peter, St. John, St. Laurence, &c., as in the Eternal City. Thereupon more than 500 years[53] elapsed in peace; but then Florence, finally resolving to be revenged on its perpetual rival, suddenly attacked and destroyed Fiesole. At this point we may remark that, if Florence had been first founded in Cæsar's time, and adorned with Roman monuments at a later date; if, after 500 years,[54] it was destroyed by Totila, and then itself overthrew Fiesole after another interval of 500 years, the chronology of the legend clearly brings us to the eleventh century at least. If we also add that the assault and partial destruction of Fiesole really occurred in 1125, it follows that, as we have noted, the legend cannot have been framed before the twelfth century.