What led to the republic?

The establishment of the Roman Republic in 509 BCE was primarily driven by a reaction against monarchical rule. The last king, Tarquin the Proud, was overthrown due to his tyrannical behavior and the alleged assault of his son on a noblewoman, Lucretia. This led to a power shift favoring the patricians, who sought to create a government that represented their interests while limiting the power of a single ruler. The republic introduced a system of elected officials and checks on power, laying the foundation for Roman governance.