Theophilos was an iconoclast, and Theodora an iconodule, which caused them to clash. The Monastery of Gastria supported the use of icons in religious worship, and Theodora would sometime send their daughters to Gastria to visit their step-grandmother. This secret was revealed when the two-year-old daughter Pulcheria mentioned to her father about the "beautiful dolls" kept in the monastery, and how the people would kiss their faces. Theophilos forbade the girls from seeing Euphrosyne ever again.
The marriage lasted 12 years, until Theophilos died of dysentery on 20 January 842. (The illustration, from the Manasses Chronicle, shows him on his death bed.) As his health was failing, he feared that his chosen successor would be supplanted by Theophobos, a general who had married Theophilos' aunt. Theophobos was invited for a stay in the palace at Constantinople. When Theophilos died, his officers had orders to immediately execute Theophobos, removing the potential rival.
This left his youngest child as the heir, with Theodora (and other advisors) named as regent for the two-year-old Michael III. Theodora turned out to be a capable leader in her own right. Although she had several advisors chosen by her husband before his death, coins minted right after his death show her and no advisors on one side, Michael III and eldest daughter Thekla on the other.
Theodora in March 843 at the Council of Constantinople did away with iconoclasm definitively. One step taken was to release the iconodule Methodios I, imprisoned by Theophilos, and make him patriarch of Constantinople to get rid of the iconoclast patriarch John the Grammarian.
When Michael III turned 15 (in 855), he took a mistress. His interests seemed to be in youthful pursuits rather than governance. Theodora arranged a bride show to find him a suitable wife, hoping this would help him settle down. The mistress, Eudokia Ingerina, was allowed to be present, but Theodora disqualified her because she was not a virgin. Michael was forced to marry a wife he did not want, so he decided to overthrow his mother and the regents. He had one advisor killed and proclaimed himself sole ruler on 15 March 856. Theodora did not fight back, retiring from power but living in the palace until Michael sent her and his sisters to Gastria. Our last recorded mention of Theodora was at Michael's funeral; she was buried at Gastria when she died.
Speaking of bride shows, it seems that Theodora might not have been Theophilos' first choice. Tomorrow I'll tell you about "the one that got away."
