<Tr> <Th_colspan="2"> Belligerents </Th> </Tr> <Tr> <Td> L. Junius Brutus Patricians Plebeians </Td> <Td> L. Tarquinius Superbus </Td> </Tr> <P> The Overthrow of the Roman monarchy was a political revolution in ancient Rome in around 509 BC, which resulted in the expulsion of the last king of Rome, Lucius Tarquinius Superbus, and the establishment of the Roman Republic . </P> <P> The Roman histories tell that while the king was away on campaign, his son Sextus Tarquinius raped a noblewoman Lucretia . Afterwards, she revealed the offence to various Roman noblemen, and then committed suicide . The Roman noblemen, led by Lucius Junius Brutus, obtained the support of the Roman aristocracy and the people to expel the king and his family and to institute a republic . The Roman army supported Brutus, and the king went into exile . Despite a number of attempts by Lucius Tarquinius Superbus to reinstate the monarchy, the republic was established and two consuls were elected annually to rule the city . </P>

How did government in rome develop who was the final tyrant or monarch of rome