Mentor in Wikipedia

In Greek mythology, Mentor (Greek: Μέντωρ / Méntōr; gen.: Μέντορος)[1] was the son of Alcumus and, in his old age, a friend of Odysseus. When Odysseus left for the Trojan War he placed Mentor in charge of his son, Telemachus, and of his palace. When Athena visited Telemachus she took the disguise of Mentor to hide herself from the suitors of Telemachus' mother Penelope.[2] As Mentor, the goddess encourages Telemachus to stand up against the suitors and go abroad to find out what happened to his father. When Odysseus returns to Ithaca, Athena (in the form of Mentor) takes the form of a swallow and the suitors' arrows have no effect on him...

Read More about Mentor in Wikipedia