Wikipedia
Octamasadas
Octamasadas was a Scythian king, the son of King Ariapifa, who lived around 446 BC. He came to power after the assassination of his brother Scylas. Octamasadas was the son of Teres’ daughter, making Octamasadas Teres’ grandson. Teres was the father of Sitalces, the Thracian king.