Demaratus, frequently called Demaratus of Corinth, was the father of Lucius Tarquinius Priscus, the fifth King of Rome, the grandfather or great-grandfather of Lucius Tarquinius Superbus, the seventh and last Roman king, and an ancestor of Lucius Junius Brutus and Lucius Tarquinius Collatinus, the first consuls of the Roman Republic. Wikipedia