King	Reign	Years
Romulus	754 to 717	37
Numa Pompilius	717 to 674	43
Tullius Hostilius	674 to 642	32
Ancus Marcius	642 to 618	24
Lucius Tarquinius Priscas	618 to 579	39
Servius Tullius	579 to 535	44
Tarquinius Superbus	535 to 510	25
REPUBLIC	510 to 49 BC
TRANSITION	49 to 27 BC
PRINCIPATE	27 to —