Analysis of information sources in references of the Wikipedia article "Σάτυρος Β΄ του Βοσπόρου" in Greek language version.
Satyrus is killed while attacking Aripharnes, king of the Siraces
A king of Bosporus, who was the eldest of the sons of Paerisades I., whom he succeeded in B.C. 311, but reigned only nine months.
Satyrus, since he was the eldest, had received the government from his father
Eumelus, however, had as ally Aripharnes, the king of the Siraces
Enrolled in his army were not more than two thousand Greek mercenaries and an equal number of Thracians, but all the rest were Scythian allies, more than twenty thousand foot-soldiers and not less than ten thousand horse
Going to the aid of those who had been worsted and for the second time becoming the author of victory.
he routed the entire army of the enemy, so that it became clear to all that, by reason both of his birth and of his valour, it was proper that he should succeeded to the throne of his fathers
Aripharnes and Eumelus, however, after having been defeated in the battle, escaped to the capital city.
This was situated on the Thates River, which made the city rather difficult of access since the river encircled it and was of considerable depth.
and had only two entrances, both artificial, of which one was within the royal castle itself and was strengthened with high towers and outworks, and the other was on the opposite side in swampy land, fortified by wooden palisades
Satyrus at first plundered the country of the enemy and fired the villages, from which he collected prisoners and much booty.
he tried to recover his kingdom; but he was overpowered and fled to the so‑called Gardens,where he was slain
he only one to escape him was Parysades, the son of Satyrus, who was very young
he, riding out of the city on horseback, took refuge with Agarus, the king of the Scythians