History of the Republic of Venice a powerful fleet sailed from Venice, to resolve the problem of the Narentine pirates. The fleet visited all the main Istrian and Dalmatian cities, whose citizen, exhausted by the wars between the Croatian king Svetislav and his brother Cresimir, swore an oath of fidelity to Venice. the Main Narentine harbours (Lagosta, Lissa and Curzola) tried to resist, but they were conquered and destroyed (see: battle of Lastovo). The Narentine pirates were suppressed permanently and disappeared. Dalmatia formally remained under Byzantine rule, but Orseolo became "Dux Dalmatie" (Duke of Dalmatia"), establishing the prominence of Venice over the Adriatic Sea. The "Marriage
Gulf of Bothnia of Bothnia into a southern gulf and northern lake across the Norra Kvarken area in about 2,000 years. Some historians suggest that the adventurer Ottar was referring to the Gulf of Bothnia when he spoke of the "Kven Sea" in the 9th century. It is also possible that Claudius Clavus's usage of the term "Mare Gotticus" in the 15th century refers to the Gulf of Bothnia. The land surrounding the Gulf of Bothnia is heavily forested. Trees are logged, then transported to the coast for milling. The gulf is also important for oil transport to the coastal cities and ore