Mentor in Harpers Dictionary of Classical Antiquities (1898)

A Rhodian Greek who with his brother Memnon served the Persian Artabazus and later King Nectanabis of Egypt. He aided Tennes, king of Sidon, against Darius Ochus, and, when Tennes went over to the Persians, entered the service of Darius, who made him satrap of the western part of Asia Minor (Arrian, Anab. vii. 419).

Read More about Mentor in Harpers Dictionary of Classical Antiquities (1898)