Thirty-three years old and armed with the loyalty of the Izmailovsky Guards regiment, Catherine II rode into Saint Petersburg on July 2, 1762 (O.S.), declared herself Empress, and forced her own husband, the erratic Tsar Peter III, to abdicate without a single pitched battle. Peter signed away the crown within days and died under suspicious circumstances shortly after. Catherine wasted no time consolidating power: she expanded the Russian Empire south to the Black Sea, west into Poland, and east across Siberia, transforming a mid-tier European state into a continental superpower that rivaled Prussia, Austria, and Ottoman Turkey simultaneously. Over 34 years on the throne, the longest reign of any female ruler in Russian history, she founded universities, codified laws, patronized Voltaire and Diderot, and added roughly 200,000 square miles of territory. The coup of July 2 set the template for modern Russian statecraft: power concentrated in a single decisive leader, legitimized by military allegiance rather than dynastic right, a pattern that has resurfaced in the centuries since.