In 1945, after many decades of negotiations, Patriarch of Constantinople recognized the restoration of [[autocephaly]] of the Church of Bulgaria whose last patriarch was Patriarch [[Evtimiy of Tamovo|Evtimiy]] in the late fourteenth century. On [[May 10]], 1953, Metr. Cyril was elected Patriarch of Bulgaria.
Patr. Cyril reposed on [[March 7]], 1971 and was buried in the main church of the Bachkovo Monastery in south central Bulgaria.