When Tarquinius Superbus desired to build a temple to Jupiter, the auguries forbade its removal, and it was enclosed within the walls of the new sanctuary, an indication of the immovability of such stones and of the permanence of the Roman territory.
Having been outraged by Sextus Tarquinius, one of the sons of Tarquinius Superbus, she informed her father and her husband, and, having exacted an oath of vengeance from them, stabbed herself to death.
After the expulsion of the Tarquins the chief events in Etruscan history are the vain attempt to re-establish themselves in Rome under Lars Porsena of Clusium, the defeat of Octavius Mamilius, son-in-law of Tarquinius Superbus, at Lake Regillus, and the treaty with Carthage.
He is said to have undertaken an expedition against Rome in order to restore the banished Tarquinius Superbus to the throne.
It was the chief of the twelve cities of Etruria, and appears in the earliest history of Rome as the home of two of its kings, Tarquinius Priscus and Tarquinius Superbus.