News of these transactions having reached the camp, when the king, alarmed at this sudden revolution, was going to Rome to quell the commotions, Brutus, for he had notice of his approach, turned out of the way, that he might not meet him; and much about the same time Brutus and Tarquin arrived by different routes, the one at Ardea, the other at Rome. The gates were shut against Tarquin, and an act of banishment passed against him; the deliverer of the state the camp received with great joy, and the king's sons were expelled. Two of them followed their father, and went into banishment to Cære, a city of Etruria. Sextus Tarquin, having gone to Gabii, as to his own kingdom, was slain by the avengers of the old feuds, which he had raised against himself by his rapines and murders. Lucius Tarquin the Proud reigned twenty-five years: the regal form of government continued from the building of the city to this period of its deliverance, two hundred and forty-four years. Two consuls, viz. Lucius Junius Brutus and Lucius Tarquinius Collatinus, were elected by the prefect of the city at the comitia by centuries, according to the commentaries of Servius Tullius.
Whose reign
Tarquinius Superbus 534–510 BC — the years tradition gives himEtruria — the country north of the Tiber.
How much of this is history
Book One covers two and a half centuries before any Roman was writing anything down, and Livy composed it four hundred years after the last event in it. He says in his own preface that what comes before the city’s founding is “rather adorned with poetic legends than founded on authentic records”. The towns on the map are real places; the reigns and the dates are tradition.