History of the Roman Empire founder of the brief Flavian dynasty, to be followed by the Nerva–Antonine dynasty which produced the "Five Good Emperors": Nerva, Trajan, Hadrian, Antoninus Pius and the philosophically inclined Marcus Aurelius. In the view of the Greek historian Dio Cassius, a contemporary observer, the accession of the emperor Commodus in 180 AD marked the descent "from a kingdom of gold to one of rust and iron"—a famous comment which has led some historians, notably Edward Gibbon, to take Commodus' reign as the beginning of the decline of the Roman Empire. In 212, during the reign of Caracalla, Roman citizenship was granted
Roman Emperors during the Fall of the Western Empire Zeno was temporarily displaced in Constantinople by Verina's brother ("i.e.", Leo I's brother-in-law and Leo II's great uncle-in-law) "Basiliscus", but regained his position as emperor a year later. On his death, Ariadne married the court functionary "Anastasius I", and thereby elevated him to Emperor by virtue of marrying the Empress. Roman Emperors during the Fall of the Western Empire The office of Roman Emperor underwent significant turbulence in the fourth and fifth centuries, particularly under the period of the Dominate. In the West, where the fall of the Western Roman Empire was underway, its holders became puppets of a succession