Antoninus Pius

138-161 AD. Aureus, 7.30g. Rome, 140-4 CE

Antoninus Pius, also known as Antoninus, was Roman emperor from 138 to 161. He was one of the Five Good Emperors. He is remembered by history as a kind, just, and wise emperor. Antoninus Pius was an “Adopted Emperor”, where succession was a conscious decision, not a birthright. After the death of Hadrian’s first adopted son, Lucius Aelius, on February 25, 138 CE, Antoninus was formally adopted by Hadrian. It was agreed that he would be made emperor with the provision that he would, in turn, adopt Marcus Aurelius.

His humanitarian efforts were significant, and he was loved by the Roman people. Antoninus Pius died in his sleep at the age of 74. His successor Marcus Aurelius spoke very highly of Antoninus: “Remember his qualities, so that when your last hour comes your conscience may be as clear as his.” His last spoken word was “aequanimitas”, meaning equanimity – mental calmness and composure.