Tullus Hostilius
According to traditional accounts Rome was first ruled by seven kings, Romulus, Numa Pompilius, Tullus Hostilius, Ancus Marcius, Lucius Tarquinius Priscus, Servius Tullius, Lucius Tarquinius Superbus, all of whom, except Numa, are recorded as fighting successful wars against Rome's neighbours. The historicity of these accounts is extremely doubtful. However, Rome must at some point in the regal period have extended her territory to include the Alban hills (traditionally attributed to Tullus Hostilius) and down to the coast (traditionally attributed to Ancus Marcius). These expansions made Rome by far the largest city-state in Latium. Roman territory c. 500 BC has been estimated to about , more than twice as large as the second largest Latin city, Tibur, at .