Complex sentence: Little to nothing is known about Archaeanax prior to his ascent to the throne, he may have been a native of Mytilene and a strategos of a league of city-states in the Cimmerian Bosporus that likely formed as a defense of the neighboring Scythian tribes.
Split into simpler sentences: Little to nothing is known about Archaeanax prior to his ascent to the throne. He may have been a native of Mytilene and a "strategos" of a league of city-states in the Cimmerian Bosporus that likely formed as a defense of the neighboring Scythian tribes.