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).
Bulavin Rebellion
In response to the uprising, Peter tightened his grip on the Cossack states, causing some 2000 under Ignat Nekrasov to flee to the protection of the Crimean Khanate. Descendants of these Nekrasovites would relocate to Anatolia during the Pugachev Uprising and settle near Constantinople, where their traditional culture would continue to the present day.