This book explores the life and philosophy of Marcus Aurelius, the last of the Five Good Emperors of Rome. It examines his Stoic beliefs and how they shaped his reign as Emperor, as well as his legacy as one of the most influential Stoic philosophers
From Wikipedia
Marcus Aurelius Antoninus was Roman emperor from 161 to 180 and a Stoic philosopher. He was a member of the Nerva–Antonine dynasty, the last of the rulers later known as the Five Good Emperors and the last emperor of the Pax Romana, an age of relative peace, calm, and stability for the Roman Empire lasting from 27 BC to 180 AD. He served as Roman consul in 140, 145, and 161.