Theodora, a Greek empress, was the wife of the nefarious Emperor Theophilus the Iconoclast. After the death of Theophilus, Theodora became the ruling empress and reigned together with her son Michael III. At the Council in Constantinople in 842 A.D., she immediately restored the veneration of icons. On this occasion the Feast of the Triumph of Orthodoxy was instituted, which is still celebrated today on the First Sunday of Great Lent. This holy and praiseworthy woman of the Church gave up her soul to God on February 11, 867 A.D. By the divine and wonderful providence of God, it was at the time of the solemn triumph of Orthodoxy over all heresies that Saints Cyril and Methodius were sent as Christian missionaries to the Slavs.