(Portorè). These developments came to an abrupt end with the Zrinski-Frankopan conspiracy. After the defeat of the rebellion in 1673, all these possessions were confiscated and put under the control of the Hungarian Aulic Council and were soon transferred to the Imperial Chamber of Inner Austria. The destruction of the most powerful feudal families and their economic might meant that between Vienna and the Adriatic ports there were no feudal lords capable of competing or disturbing the Habsburgs' plans for economic development. One of the obstacles in the way of the implementation of these plans was the Venetian monopoly in the Adriatic, which effectively prevented ships from other countries sailing freely on this closed sea, at the time known also as the "Gulf of Venice". Habsburg success was achieved under Charles VI. In 1717, after another victorious campaign against the Ottomans (but this time with Venice as its ally) the Adriatic sea was promptly declared free for trade, with Venice no longer opposing it. In 1718, peace was concluded with the Ottoman Empire, and a commercial treaty brought important commercial liberties to the Ottoman and Habsburg subjects. In 1719, Trieste and Fiume were declared free ports of the empire. In 1723 the Gran Consiglio of the Fiuman commune was put under the Circle of Inner Austria with its seat at Graz. The captain, as a representative of the emperor, held the executive power over governmental economic policy. Progressively, Fiume was included in a broader institutional framework aimed at the economic development of the whole empire, and was increasingly included as part of Hungary. That Hungarian influence was on the rise is reflected in the fact that Fiume, as a Free City, accepted the Pragmatic Sanction in 1723, the same year as did the Hungarian Diet and the other Habsburg lands, while the "sister city" of Trieste had done so ten years earlier, in 1713. Charles VI intended for Trieste to link Austrian lands to his remaining Spanish possessions – Naples. Fiume was to provide a link to Hungary and the Banat of Temesvar, where the colony of Spanish exiles of Nova Barcelona was to be founded. Establishing Fiume as the link to Hungary was entrusted to Ramon de Vilana Perlas (1663-1741), Marques de Rialp, who was, until his resignation in 1737, the to Charles VI, as well as the executive of the Spanish and Belgian councils, and coordinator of diplomatic