Nikita Pustosvyat

In this name that follows Eastern Slavic naming customs, the patronymic is Konstantinovich and the family name is Dobrynin.
Old Believer Priest Nikita Pustosvyat Disputing with Patriarch Joachim on Matters of Faith by Vasiliy Perov, 1880-81.

Nikita Pustosvyat (Russian: Никита Пустосвят, real name Nikita Konstantinovich Dobrynin (Никита Константинович Добрынин); died June 11, 1683) was one of the leaders of the Russian Old Believers during Raskol.