Cleomenes III
After his brother Agis IV was murdered in 241 BC, he fled to Messenia. In 228 (or 227) he was ordered back to Sparta by King Cleomenes III of the Agiad line, who had no counterpart on the throne by then, after the death of Eudamidas III, the son of Agis IV. He was assassinated shortly afterwards. Polybius claims that he was killed by Cleomenes.