Telemachus was the son of Odysseus and Penelope. He was born just before Odysseus was forced to leave for Troy. Telemachus was too young to assume the role of king, and his grandfather Laertes was too old. During this time, suitors arrived and sought his mother Penelope's hand in marriage.
In an attempt to look for his father, Telemachus set sail to the mainland. This voyage was supported by the suitors, who hoped that the young man would never return. On that voyage, he met several of the kings who had fought alongside his father at Troy. He met Nestor at Pylus and Menelaus in Sparta, neither of whom could confirm the status of his father.
By the time Telemachus returned, he was on the threshold of manhood. Because of the age of Telemachus and the certainty that Odysseus must be dead, Penelope at last decided to remarry. It was at this time that Odysseus, disguised as a beggar, finally returned after twenty years away. Telemachus met him in the hut of Eumaeus, and the two set about plotting the downfall of the suitors.
The two returned to the palace, and with the help of the loyal servants Eumaeus and Philoetius they killed the many suitors in the palace.