The Ionians fought on, gaining control of Byzantium and the surrounding towns as well as the greater part of Caria and Caunus. They were not, however, alone. In this last phase of the conflict, almost all of Cyprus also rebelled against the Persians. Onesilus, the younger brother of Gorgus, the ruler of Salamis, tried to convince his brother to rebel against Persia and join in the Ionian Revolt. When his brother refused to support the revolt, Onesilus waited until he left Salamis and then shut the city gates on him. Gorgus fled to the Persians while Onesilus took over and convinced the Cyprians to revolt. They then proceeded to lay siege to the city of Amathus.