713, Paoluccio Anafesto; 717, Marcello Tegliano; 726, Orleo Orso; 737, Orso killed--the republic ruled by annually elected _maestro della milizia_; 742, Diodato Orso; 755, Galla Catanio; 756, Domenico Monegaro; 764, Maurizio Galbaio; 787, Giovanni Galbaio; 796, Maurizio Galbaio II (associated); 804, Banishment of the Galbaii--Obelerio di Antenori, Beato and Valentino di Antenori associated; 809, Angelo Badoer; 827, Giustiniano Badoer; 829, Giovanni Badoer; 836, Pietro Tradenigo; 864, Orso Badoer; 881, Giovanni Badoer II; 887, Pietro Sanudo; 888, Giovanni Badoer II; Pietro Tribuno; 912, Orso Badoer II; 932, Pietro Sanudo II; 939, Pietro Badoer; 942, Pietro Sanudo III; 959, Pietro Sanudo IV; 976, Pietro Orseolo I; 978, Vitale Sanudo; 979, Tribuno Memo; 991, Pietro Orseolo II; 1008, Ottone Orseolo; 1026, Pietro Barbolano; 1033, Domenico Flabenigo; 1043, Domenico Contarini; 1071, Domenico Selvo; 1084, Vitale Falieri; 1096, Vitale Michieli; 1102, Orlando Falieri; 1117, Domenico Michieli; 1130, Pietro Polani; 1148, Domenico Morosini; 1156, Vitale Michieli II; 1173, Sebastiano Ziani; 1179, Orlio Malipiero; 1192, Henry Dandolo; 1205, Pietro Ziani; 1229, Jacopo Tiepolo; 1249, Marino Morosini; 1252, Reniero Zeno; 1268, Lorenzo Tiepolo; 1275, Jacopo Contarini; 1280, Giovanni Dandolo. [Illustration] CHAPTER II. IMPERIAL AGGRESSIONS OF THE TWELFTH CENTURY FREDERICK BARBAROSSA IN ITALY The long war of the investitures, between the Franconian emperors and the popes, had given the first impulse to the ambition of the Lombard cities for alliance; as general interests were involved, as it was a question of distant operations and common danger, the cities felt the necessity of alliances and of an active correspondence, which soon extended from one extremity of Italy to the other. The smaller towns soon found that this general policy was beyond their means, and that the great cities, in which commerce and wealth had accumulated knowledge, and which alone received the communications of the pope or of the emperor, naturally placed themselves at the head of the league formed in their provinces, either for the empire or for the church. These two leagues were not yet known in Italy by the names of Guelf and Ghibelline, which in Germany had been the war-cry of the two parties at the battle of Winsberg, fought on the 21st of December, 1140, and which had previously distinguished, the former the dukes of Saxony and Bavaria, devoted to the pope, the latter, the emperors of the house of Franconia. But although these two names, which seem since to have become exclusively Italian, had not yet been adopted in Italy, the hereditary affection respectively for the two parties already divided the minds of the people for more than a century, and faction became to each a second country, often served by them with not less heroism and devotion than their native city.[b] [Sidenote: [1152-1155 A.D.]]