Neoptolemus

Neoptolemus (also called Pyrrhus) was the son of the warrior Achilles and the princess Deidamia. Brought into the Trojan War to fulfill a prophecy of the captured Trojan seer Helenus, he soon gained a reputation for cruelty and savagery, and was responsible for killing King Priam, Eurypylus, Polyxena, Polites and Astyanax, among others, as well as enslaving Helenus and taking Andromache as his concubine. After the War, he sailed to the Epirot Islands with Andromache, Helenus and Phoenix, and became the king of Epirus. He fathered Molossus with the enslaved Andromache and, according to some legends, was an ancestor of Olympias, the mother of Alexander the Great. He was either killed after attempting to take Hermione from Orestes, or after he denounced Apollo.