Together with the tribes of the Thracians, the numerous cities of the Greeks on this coast became subjects of Darius.[307] Doriscus on the mouth of the Hebrus received a Persian garrison.[308] In vain the inhabitants of Teos, more than thirty years previously, had emigrated before the siege of Harpagus, and founded Abdera on this coast--they now became subjects of the Persians. In return for the great service which he had rendered at the bridge on the Danube, Histiaeus the prince of Miletus received permission to found a colony on the Strymon, where it leaves Lake Prasias, in the land of the Edonians, near Myrcinus, on the north-west spur of Pangaeum, which is here clothed with magnificent forests, and possessed fruitful veins of silver.[309] Histiaeus began at once to build the walls which were to protect the new settlement. With the subjugation of the Paeonians and the crossing of the Strymon, Megabyzus reached the border of an empire, the Macedonian kingdom, the central district of which lay between the Axius and the Haliaemon. Amyntas, the son of Alcetas,[310] the king of Macedonia, was requested by Megabyzus through an embassy of seven Persians to send earth and water as tokens of submission to Darius. Amyntas was in great terror of the Persians, as Herodotus tells us;[311] he did not refuse the request, and thus acknowledged the sovereignty of the Persians. In order to do honour to his envoys, they were hospitably entertained. But when in their intoxication they laid hands on the women of the royal house, Alexander the young son of Amyntas caused them to be cut down with their train. As they did not return, Megabyzus sent his son Bubares, the brother of the Zopyrus who had done good service before Babylon, and was now viceroy there, with an armed force.[312] Amyntas was prepared to pay a large sum as a fine, and to receive the son of Megabyzus at his royal house; he gave his own daughter Gygaea, the sister of Alexander, in marriage to Bubares.[313] While Megabyzus subjugated the Thracian coast with its harbours and trading-places to the west as far as the Strymon, Otanes had completed the reduction of the rebellious Greek towns to the south of the straits, on the shores of Asia Minor. Not only Lamponium and Antandrus, opposite Lesbos, but also Abydus, Chalcedon, and Byzantium were punished. Coes, who had led the ships from Lesbos to the Danube, had been rewarded for his services to Darius by the government of the island. He was not required to furnish ships to Otanes for the conquest of Lemnos and Imbros. The Lemnians resisted bravely. When they had been conquered, Otanes made Lycaretus, a brother of Maeandrius of Samos (p. 261), tyrant of the island, and he governed it till his death (towards 500 B.C.[314]). With the conquest of Lemnos and Imbros, two large and important islands in the Ægean Sea, in addition to Samos, Chios and Lesbos were gained for the Persian kingdom.