Pausanias of Orestis
Pausanias of Orestis (Greek: Παυσανίας ἐκ τῆς Ὀρεστίδος) was a member of Philip II of Macedon's somatophylakes, his personal bodyguard. He assassinated Philip in 336 BC, possibly at the instigation of Philip's wife Olympias, or even his son Alexander the Great. He was captured and killed. The most popular story explaining the murder comes from Diodorus Siculus, who expanded upon its mention by Aristotle.
According to Diodorus, the general Attalus blamed Pausanias for the death of his friend. Philip and Pausanias had once been lovers, but the affair ended, and Philip started a new affair with Attalus' friend (also named Pausanias). The former Pausanias, feeling spurned, insulted his romantic rival in public. To secure his honor, Attalus' friend committed suicide by recklessly putting himself into danger in battle, while at the same time protecting the king. Devastated, Attalus sought to punish Pausanias of Orestis, and did so by getting the man drunk, and then submitting him to a rape. For any number of reasons, Philip did not punish Attalus. Pausanias of Orestis was promoted to the rank of somatophylax, probably as a consolation.