Saint Venerable Mercurius, the Faster of the Far Caves in Kiev (November 4) died in the 14th century.
Saint Nikephoros I., Patriarch of Constantinople (June 2) was a great believer in worshiping images; in the dispute over this question, he was deposed by Emperor Leon V. and banished as patriarch.
Saint Great Martyr Catherine of Alexandria (November 24, November 25) is one of the famous saints. She belongs to the fourteen Holy Helpers in Need and is gilded as helpers with ailments of the tongue and language difficulties. She is the patron saint of schools, the philosophical faculties, needlewomen and tailors. According to the legend, St. Catherine was a consecrated virgin who promised herself to Christ. She is said to have been the beautiful daughter of the pagan king Costus and his wife Sabinella from Cyprus, who lived in Alexandria in Egypt around 300 AD and who became a believer from a hermit. She suffered martyrdom with the wheel under the Roman Emperor Maxentius (306-312).