Early Life and Family
Theodora was born on Aegina around 812 and christened Agapi. According to the external accounts her father was a senior priest who later became a monk, and she had monastic and clerical relatives — by one account a brother who served as a deacon and a sister who was a nun. She also had kin established at Thessalonica, including an abbess named Aikaterine, Anthony the Confessor, and an abbess Anna.
Betrothed as a young child and taught portions of the Psalms, she fled with her family to Thessalonica amid the Arab raids on the Aegean. There she married and bore three children, of whom only her firstborn daughter — born around 829–830 — survived. The accounts relate that she vowed to dedicate her surviving child to the monastic life, and the girl entered a convent (named as that of Saint Luke the Evangelist) as a child, receiving the name Theopiste.
Monastic Life
After her husband's death around 837, Theodora gave her possessions to the poor and entered the convent of Saint Stephen the Protomartyr in Thessalonica, taking the name Theodora at her tonsure. By the accounts she lived there in strict asceticism for fifty-five years, under the guidance of Abbess Anna, described as a former confessor for the veneration of icons.
She was remembered for her obedience, hard work, and humility. The synaxarion and later accounts relate striking ascetic episodes: a period of enforced silence between her and her daughter Theopiste while sharing a cell, and a penance of kneeling through a snowstorm overnight after she moved a boiling kettle without permission. Around 868 Theopiste became abbess of the community, so that Theodora spent her final years in obedience to her own daughter.
The accounts note that during her lifetime she worked no public miracles; her holiness was expressed through her ascetic discipline and obedience rather than wonderworking.
Repose
By the accounts Theodora fell ill in early August 892 and was granted foreknowledge of her death. She reposed on August 29, 892, at about the age of eighty, after receiving Holy Communion. The accounts relate that after death her aged face became radiant and gave off a sweet fragrance.
Her daughter Theopiste arranged for the daily celebration of the Divine Liturgy at her grave for forty days.
Relics & Shrines
About a year after her repose the Monastery of Saint Stephen was renamed the Monastery of Saint Theodora in her honor. When the Ottomans took Thessalonica in 1430 the accounts relate that her relics were destroyed, though the monastery itself was neither confiscated nor converted to a mosque; it continued as a women's monastery known as 'Kizlar Manastir,' said to have housed over two hundred nuns. A fire in 1917 destroyed the katholikon, a new church was built in 1935, and the community became a men's monastery in 1974.
By the modern accounts, sacred relics now rest in a chapel of Hagia Sophia in Thessalonica, with portions kept in the Church of All Saints at Livadi on Aegina; a chapel dedicated to Saint Theodora stands in the village of Sfentouri in southern Aegina.
In 2009–2010, excavations on Vasileos Hirakleiou Road in Thessalonica uncovered, in proto-Byzantine layers, a well-preserved tomb adjoining a large triple-naved basilica dedicated to Saint Theodora. The structure retained its roof, arch, walls, and marble flooring, with a forward area that appeared to have received some liquid. Melina Paisidou of the 9th Ephorate of Byzantine Antiquities reported a first suspicion that it was the grave of Saint Theodora, the saint commemorated on August 29.
Miracles & Traditions
Historically Documented: Her life was written by Gregory the Presbyter, and the external accounts describe this vita as approximately 20,000 words long — by their report the longest hagiographical account of a holy woman in Byzantine history — and note that her biographer also documented posthumous miracles. The accounts further relate that after her death her remains were translated to a separate sarcophagus from which a fragrant, miraculous oil streamed, earning her the title of myrrh-gusher.
Traditional Accounts: By tradition, witnesses reported seeing a halo descend from heaven to crown her, and she was said to hear angelic chanting in the convent church. The accounts relate that an Archimandrite John offered to make her abbess of another house, which she refused. After her repose, tradition holds that a vigil lamp over her grave remained lit without oil for eleven days, after which oil began to flow abundantly; and that a painter named John, commissioned to make her icon without knowing her appearance, relied on dream visions and produced an image that emitted healing oil.
Commemoration
Theodora and her daughter Theopiste are commemorated together. Her feast is properly August 29, the day of her repose, but it is customarily celebrated on August 3 because August 29 is the strict fast of the Beheading of John the Forerunner.
