John Calybite

John Calybite (died c. 450) was a Greek monk and hermit who is venerated as a saint by the Eastern Orthodox Church and Roman Catholic Church. He left home at a young age and for several years was a monk in Jerusalem. He returned home disguised as a beggar, and his parents did not recognize him, but gave him a hut to live in. He revealed himself to his mother when on his deathbed. His feast day is celebrated on 15 January.