Trajan if you mean by most land, Marcus Aurelius if you mean economic prosperity
Augustus was not the ruler of a country. He was the ruler of an empire: the Roman Empire.
Augustus was the ruler of the Roman Empire when the Aeneid was written. In fact, he specially commissioned Virgil to write it.
Trajan was the emperor at the height of the roman empire.
Charlemagne was the first ruler of the Holy Roman Empire.
The emperor
Octavian defeated Antony and became the first ruler of the Roman Empire.
After the height of the Roman Empire comes the decline of the Roman Empire
Diocletian was the Roman Empire in the late 200's
Augustus caesar
Calilgula
The Pope
Julius was a very famous roman ruler, who ruled the roman empire.