6. Heracleia is a city with a good harbour, and of importance in other respects. It has sent out colonies, among which are the Cherronesus,[1113] and the Callatis.[1114] It was once independent, afterwards for some time it was under the power of tyrants; it again recovered its freedom; but at last, when subject to the Romans, it was governed by kings. It received a colony of Romans, which was settled in a portion of the city, and of its territory. A little before the battle of Actium, Adiatorix, the son of Domnecleius the tetrarch of Galatia, who had received from Antony that portion of the city of which the Heracleiotæ were in possession, attacked the Romans by night, and put them to death by the command, as he said, of Antony; but after the victory at Actium, he was led in triumph, and put to death together with his son. The city belongs to the province of Pontus, which was annexed to Bithynia. 7. Between Chalcedon and Heracleia are several rivers, as the Psillis,[1115] the Calpas, and the Sangarius, of which last the poet makes mention.[1116] It has its source at the village Sangias, at the distance of 150 stadia from Pessinus. It flows through the greater part of Phrygia Epictetus, and a part also of Bithynia, so that it is distant from Nicomedia a little more than 300 stadia, where the river Gallus unites with it. The latter river has its source at Modra in Phrygia on the Hellespont, which is the same country as the Epictetus, and was formerly occupied by the Bithynians. The Sangarius thus increased in bulk, and navigable, although not so formerly, is the boundary of Bithynia at the part of the coast where it discharges itself. In front of this coast is the island Thynia. In the territory of Heracleia grows the aconite. This city is distant from the temple at Chalcedon about 1500, and from the Sangarius 500, stadia. 8. Tieium is now a small town and has nothing remarkable belonging to it, except that it was the birth-place of Philetærus, the founder of the family of the Attalic kings. Next is the river Parthenius, flowing through a country abounding with flowers; from these it obtained its name.[1117] Its source is in Paphlagonia. Then succeeded Paphlagonia, and the Heneti. It is a question what Heneti the poet means, when he says, “the brave Pylæmenes led the Paphlagonians out of the country of the Heneti, where they have a race of wild mules;”[1118]