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).
Astafy Dolgopolov
Then Dolgopolov embarked on a new dangerous enterprise, presenting himself to Catherine II as a Yaik Cossack named Trifonov who allegedly wanted to deliver Pugachev to the government. He invented a conspiration among the Cossacks and composed a whole letter with 300 signatures to the Empress and Grigory Orlov. Received in August in Tsarskoye Selo by Catherine, he received 2000 roubles as a prize and was sent to the Lower Volga in charge of a detachment instructed to find and capture Pugachev. In early September he additionally took another sum of 3000 roubles in golden coins from an officer sent together with him, and fled to Rzhev with all the money, as Pugachev had been already captured before the expedition could ever find his whereabouts.