Little is known of the later career of Orthagoras except that he governed mildly, and of his successor Myron (Olympian victor in 648 B.C.[1302]) nothing is recorded that throws any direct light on the origin of the tyranny: but the case is different when we come to Cleisthenes, the last and most famous of this family of tyrants, whose reign covered roughly the first third of the sixth century[1303]. With Cleisthenes the Sicyonian tyranny entered on a new phase. Aristotle quotes Sicyon as an instance of a city where the government changed “from tyranny to tyranny ... from that of Myron to that of Cleisthenes[1304].” The story of how Cleisthenes got his two brothers out of the way is told by Nicolaus Damascenus[1305]. But what Nicolaus gives is purely a tale of domestic crime, a change from tyrant to tyrant not from tyranny to tyranny. Perhaps the change referred to by Aristotle is to be connected with the fact that Cleisthenes followed an aggressive foreign policy[1306]. He was violently hostile to Argos[1307], and took a leading part in the “sacred” war that was fought about Delphi at the beginning of the sixth century B.C.[1308]. He was a contemporary of Periander who appears to have changed the character of the tyranny at Corinth by making the government warlike. It is not unlikely that the change effected by Cleisthenes at Sicyon was in the same direction. In turning to war it does not follow that he forsook trade. He may have held the view that trade follows the flag. The “sacred” war had its secular side. It arose about the refusal of the people of Krisa, who possessed the port of Delphi, to remove their harbour dues. Krisa was a place of importance in early times[1309], so much so that what was later known as the Gulf of Corinth was called the Gulf of Krisa. The territory of the Krisaians lay just opposite Sicyon, and it seems not improbable that the Sicyonians, with their allies the Corinthians[1310], aimed at wresting from their rivals across the water their position in the gulf which was the starting-point of trade with the far West[1311]. According to a Pindar scholiast the Krisaians had control of the sea at the beginning of the war and owed their ultimate defeat to the fact that Cleisthenes built a fleet and destroyed their naval supremacy[1312]. It looks very much as though Cleisthenes was trying to win for Sicyon the sea-borne trade that had been flowing into Krisa. With the aid of a fleet that must for the time have made Sicyon a really important naval power[1313] he crushes the trade rival across the water and wins its place for his own city and himself[1314].