Antoninus Pius

Antoninus Pius (lived 19 September 86—7 March 161 AD, reigned 11 July 138—7 March 161 AD) was a Roman emperor and fourth of the “Five Good Emperors.” He was born into a senatorial family and held various offices during the reign of Emperor Hadrian. Hadrian adopted him as his son and successor shortly before his death. His reign is notable for the peaceful state of the Roman empire, with no significant revolts or military incursions during this time.