Memnon of Rhodes

Memnon of Rhodes (Greek: Μέμνων ὁ Ῥόδιος; c. 380 – 333 BC) was a prominent RhodianGreek commander in the service of the Achaemenid Empire. Related to the Persian aristocracy by the marriage of his sister to the satrap Artabazus II, together with his brother Mentor he served the Persian king for most of his life, and played an important role in the empire's defence during the invasion of Alexander the Great, in particular at the Siege of Halicarnassus, and even the decades before that.

Carl Otis Schuster notes that though often inaccurately described as "simply a mercenary", Memnon was arguably the toughest defender of the Persian Empire Alexander had to face, and was nearly successful in putting a halt to him.