In the 3rd century BC, pirate attacks on Olympus in Lycia brought impoverishment. Among some of the most famous ancient pirateering peoples were the Illyrians, a people populating the western Balkan peninsula. Constantly raiding the Adriatic Sea, the Illyrians caused many conflicts with the Roman Republic. It was not until 229 BC when the Romans finally decisively beat the Illyrian fleets that their threat was ended. During the 1st century BC, there were pirate states along the Anatolian coast, threatening the commerce of the Roman Empire in the eastern Mediterranean. On one voyage across the Aegean Sea in 75 BC, Julius Caesar was kidnapped and briefly held by Cilician pirates and held prisoner in the Dodecanese islet of Pharmacusa. The Senate finally invested the general Gnaeus Pompeius Magnus with powers to deal with piracy in 67 BC (the "Lex Gabinia"), and Pompey, after three months of naval warfare, managed to suppress the threat.