In Roman mythology, Jupiter hel the same role as Zeus in the Greek pantheon. He was called Iuppiter Optimus Maximus (Jupiter Best, Greatest); as the patron deity of the Roman state, he ruled over laws and social order. He was the chief god of the Capitoline Triad, with Juno and Minerva. In Latin mythology Jupiter is the father of Mars. Therefore, Jupiter is the grandfather of Romulus and Remus, the founders of Rome.