Baradates

St Baradates (died circa 460) was a hermit who lived in the Diocese of Cyrrhus in Syria, and whose bishop, Theodoret, called him "the admirable Baradates."
Baradates lived in a tiny hut, too small for him to stand upright, and he wore a leather garment that exposed only his mouth and nose. He was said to have been very learned, particularly in theology. Emperor Leo wrote him, asking his advice regarding the Council of Chalcedon.
In the Roman Catholic Church, the Feast of St Baradates is February 22.