Numa Pompilius

Numa Pompilius (753–673 BC; reigned 715–673 BC) was the legendary second king of Rome, succeeding Romulus. He was of Sabine origin, and many of Rome's most important religious and political institutions are attributed to him.

Read more about Numa Pompilius:  Genealogy, Kingship, Agent of The Gods, Institutions Attributed To Numa