Caracalla, originally Marcus Aurelius Antonius, known emperor of Rome from 211, arranged the murder of Geta, his brother, and extended citizenship to all free inhabitants; during a campaign against Parthia, someone assassinated him.
https://en.wikipedia.org/wiki/Caracalla Caracalla, originally Marcus Aurelius Antonius, known emperor of Rome from 211, arranged the murder of Geta, his brother, and extended citizenship to all free inhabitants; during a campaign against Parthia, someone assassinated him.