Onasander Wikipedia
Onasander or Onosander (Greek: Ὀνήσανδρος Onesandros or Ὀνόσανδρος Onosandros; fl. 1st century AD) was a Greek philosopher. He was the author of a commentary on the Republic of Plato, which is lost, but we still possess his Strategikos (Στρατηγικός), a short but comprehensive work on the duties of a general.