In Greek mythology, Telemachus was the son of Odysseus and his wife Penelope. He grew up without his father's presence for much of his life while Odysseus was fighting the Trojan War and on the long journey back home.
Telemachus was only a baby when Odysseus was called to go to Troy. Because he did not want to go, Odysseus pretended to be insane but was proven to have his sanity intact when his baby son was placed in front of his plow. Rather than harm his baby, he agreed to go to Troy and was gone for the next 20 years. During the absence of Odysseus, Penelope was besieged by men wanting to marry her. Telemachus ordered them to leave her alone. When Odysseus returned, Telemachus, Odysseus and Odysseus' father, Laertes, killed all the men who had been bothering Telemachus' mother.