Aeneas Silvius was the third descndant of Aeneas and third king of Alba Longa, the site of Rome. Aeneas (or Aineias) was a Trojan hero, the son of prince Anchises and the goddess Aphrodite (Venus in Roman sources). ... Alba Longa was a city of ancient Latium in central Italy about 19 km (12 miles) southeast of Rome. ... The Roman Empire is the term conventionally used to describe the Ancient Roman polity in the centuries following its reorganization under the leadership of Octavian (better known as Caesar Augustus). ...