After World War II, the eparchy of Mukačevo in Transcarpathia was annexed by the Soviet Union, thus the eparchy of Prešov included all the Greek Catholics that remained in Czechoslovakia.
Nakon Drugog svjetskog rata, eparhiji Mukačevo u Transkarpatiji je pripojena Sovjetskom Savezu, stoga su eparhiji Prešov uključeni svi grkokatolici koji su ostali u Čehoslovačkoj.