Toward the end of the Alban line, King Procas was the father of Numitor and Amulius. At Procas' death, Numitor became king of Alba Longa, but Amulius captured him and sent him to prison. Amulius forced Numitor's daughter, Rhea Silvia, to become a virgin priestess among the Vestals. Mars fell in love with Rhea Silvia and she bore him twin sons, Romulus and Remus. Rhea Silvia was put to death and the twins were abandoned along the Tiber river. The river flooded and the twins were found by a she-wolf. They were eventually found by a shepherd named Faustulus. When Romulus and Remus became adults, they killed Amulius and restored Numitor to the throne.