reprisals on the part of the Emperors if satisfaction were refused. But it is most unlikely that for so trifling a cause the Archbishop and chief citizens would have been sent to the Doge. This version, however, is accepted by Mauro Orbini.[51] Ragnina does not even mention the expedition. Resti[52] says that Ottone Orseolo was sent to Ragusa merely to make a commercial treaty; but as Pisani observes, if the magistrates appointed to the other Dalmatian towns were sent to govern them, there is no reason to suppose that an exception was made for Ragusa. There is, on the whole, the strongest evidence that Ragusa did actually submit to Venetian supremacy, together with the other coast towns, in 1000, and received a Venetian governor. Local usages and laws, however, were respected, according to the Venetian practice of the time; nor was Imperial authority wholly disregarded, and prayers for the Emperor continued to be sung in the churches of Ragusa. Venetian rule was not of long duration. On the death of Pietro Orseolo in 1008, his son Ottone became Doge; and during this reign a strong opposition to the house of Orseolo was aroused, which ended with Ottone’s expulsion in 1026. During the reign of his successor, Pietro Centranico, faction feuds broke out, greatly weakening the Republic, and the Dalmatian towns revolted, as Venetian suzerainty was of use to them only so long as Venice was powerful. Some of them went over to Dobroslav, prince of the Tribunian Serbs, and elsewhere Byzantine authority revived. Thus in 1036, instead of a Venetian count at Zara, we find Gregory, Jadertinus Prior, Pro-consul and Imperial Strategos for all Dalmatia.[53] But his authority was disputed by the Croatians, whose sovereign now proclaimed himself King of Dalmatia.[54] Against this act the Venetians issued a protest, and the Doge Domenico Contarini (1043-1071) reasserted the authority of the Republic.