Patroclus

In Greek mythology, Patroclus was Achilles' best friend, son of Menoetius. In his youth, Patroclus killed his friend, Clysonymus, during an argument. He fought with the Greeks at the Trojan War and killed Sarpedon and Cebriones. When Achilles refused to fight because of his fued with Agamemnon, Patroclus donned his armor and was killed by Hector.