Prokopy Petrovich Lyapunov

Prokopy Petrovich Lyapunov was a prominent 17th century Russian nobleman (dvoryanin), voivode of, allegedly, a Rurikid origin who practically became a head of Pereyaslavl-Ryazansky lands nobility in the end of 1590s; he took part in wars during power vacuum in succession crisis that happened in early 1598 in Tsardom as result of confusion about legitimate heir apparent following death of Feodor I, nobility infighting, war declared by Polish–Lithuanian Commonwealth (PLC) in 1605, and exhaustive Tatar raids; most famously he is remembered for organizing and leading the first unsuccessful uprising against occupation of Moscow of 1610 by PLC in April of 1611.