Соловецкий монастырь
After the destruction of the Zaporizhian Sich, Kalnyshevsky was arrested, tried and in July 1776 incarcerated at Solovetsky Monastery, with the strict prohibition of correspondence or socialization with anyone. In 1792, he was transferred to solitary confinement at the Povarnya jail, where he remained until 1802. When his cell was opened it was discovered that it had feces two arshins (nearly three feet) deep.