Dmitriy Vladimirovich Kuz'min-Karavaev (1886–1959) was an Old Bolshevik who converted after the October Revolution from Marxist-Leninist atheism to Catholicism while working as a senior official of the Commissariat of Nationalities directly under a young Joseph Stalin.
After being deported from the Soviet Union in the Philosophers' ship, he was subsequently ordained to the priesthood in the Russian Greek Catholic Church and became a well-known professor at the Russicum.
[2] During his legal studies at the University of St. Petersburg, Dmitriy discovered the writings of Vladimir Ilyich Lenin and joined the Bolshevik faction of the Russian Social Democratic Party.
After serving a prison term, he openly ceased all anti-Tsarist activity and received a position with the Department of State Properties at the Ministry of Agriculture.
However, Karavaev was critical of an idea much present in his epoch: the biritualism of certain Russian priests - Latin and Byzantine - which would be an obstacle to uniting Orthodox believers to the Catholic Church.