Yemelyan Pugachev
Yemelyan Ivanovich Pugachev () (c. 1742 – ) was a Russian Cossack who led a great popular insurrection during the reign of Catherine the Great, claiming to be her late husband, Emperor Peter III. Alexander Pushkin wrote a notable history of the rebellion, "The History of Pugachev", and he recounted some of the events in his novel "The Captain's Daughter" (1836).
Catherine the Great
Grigory Potemkin was involved in the "coup d'état" of 1762. In 1772, Catherine's close friends informed her of Orlov's affairs with other women, and she dismissed him. By the winter of 1773, the Pugachev revolt had started to threaten. Catherine's son Paul had also started gaining support; both of these trends threatened her power. She called Potemkin for help—mostly military—and he became devoted to her.