Lucius Tarquinius Superbus was expelled

Tensions came to a head when the king's son, Sextus Tarquinius, raped Lucretia, wife, and daughter to a powerful Roman noble. Lucretia told her relatives about the attack and committed suicide to avoid the dishonor of the episode. Four men, led by Lucius Junius Brutus, and including Lucius Tarquinius Collatinus, Publius Valerius Poplicola, and Spurius Lucretius Tricipitinus incited a revolution that deposed and expelled Tarquinius and his family from Rome in 509 BC. Tarquin was viewed so negatively that the word for king, rex, held a negative connotation in the Latin language until the fall of the Roman Empire.