 He was convicted and spent 10 years in the prisons and labour camps of the GULAG.He was rehabilitated in 1955, but with a "wolf ticket" that means an internal exile without the right to settle closer than 100 km from large urban centers.During the last year of his life he lived in Klin at the Tchaikovsky's House-Museum, where Yuri Lvovich Davydov (the nephew of Pyotr Tchaikovsky) and his daughters Irina and Xenia gave him a refuge.