Intrigue and manipulation played pivotal roles in the ascendency of the infamous figure. Initially, he orchestrated the murder of his wife and brother-in-law, thereby becoming the sole ruler of Collatia, a powerful city-state under Roman control. Uncontent with this status, he set his growth-oriented sights on the then-reigning King Servius Tullius, his father-in-law.
Utilizing political cunning and brutality, he exploited the inherent flaws within the Roman governance system. Using his existing social standing, he publicly undermined and discredited King Tullius, while lobbying for support among the senators and the patricians.
The climax of this power move arrived when he unceremoniously threw Tullius down the steps of the senate house, effectively usurping the throne. Spreading fear and claiming immediate control, he declared himself the seventh king of Rome – despite having no rightful claim. Thus began a reign characterized by tyranny and fear, fundamentally distinguishing him from his more benevolent predecessors.