The treaty of Cambray had so far as Ravenna was concerned a certain finality about it. Thenceforth the popes ruled the city through a cardinal legate, and an era of a certain social and artistic splendour began; the city was adorned with at least one new church, S. Maria in Porto, with many monuments and palaces, and some great public works were undertaken. So Ravenna in the arms of the Church slumbered till, in 1797, the great soldier of the Revolution descended upon Italy in that marvellous campaign which so closely recalls the achievement of Caesar. Ravenna then became a part first of the Cispadan and later of the Cisalpine republic. Then, as we know, came the Austrians who took Ravenna from the French, but were in their turn expelled in 1800, when the city was incorporated into the short-lived kingdom of Italy. But it was again attacked by the Austrians, and later restored once again to the pope. A period of uncertainty and confusion followed in which various provisional governments were established for Ravenna, but at last in 1860 the city and its province were, by a vote of the people, included in the kingdom of United Italy. [Illustration: MONUMENT OF GASTON DE FOIX] XVIII RENAISSANCE RAVENNA CHURCHES AND PALACES The period of the Renaissance which saw the papal government re-established in Ravenna in 1529, has left its mark upon the city in many a fine monument, indelibly stamped with the style of that fruitful period. Among such monuments we must note the beautiful tombs of Guidarello Guidarelli, by Tullio Lombardi, erected in 1557, now in the Accademia, and of Luffo Numai by Tommaso Flamberti in S. Francesco, erected about fifty years earlier (1509). Above all, however, must be named the great church of S. Maria in Porto (1553) and the palaces of Minzoni, Graziani, and others, with the Loggia del Giardino at S. Maria in Porto. And there is, too, the work of the painters Niccolo Rondinelli, Cotignola, Luca Longhi and his sons, Guido Reni, and others. Later the papal government undertook many great public works. The Venetians had, as we shall see, re-fortified Ravenna; these fortifications the papal government enlarged, and in the middle of the seventeenth century undertook the digging and construction of the Canale Pamfilio, so named in honour of Innocent X., and in the following century of the Canale Corsini. These works were necessary, it is said, not only for the maritime commerce of the city, which one may think was scarcely large enough to have excused them, but for the preservation of Ravenna from inundation consequent upon the silting up of the rivers.