Early Life and Monastic Vocation
According to her life as recorded in the synaxarion, Anthousa was the daughter of parents named Strategios and Febronia, who were distinguished for their piety and raised her accordingly. Although she received proposals of marriage, she chose a life of virginity.
After the death of her parents she devoted her inherited estate to charitable and sacred causes and withdrew to pursue an ascetic life in mountain solitude. She received monastic tonsure from the hieromonk Sisinios and in time became abbess (igoumene) of a monastery housing some ninety nuns.
The synaxarion relates that she established two monasteries: one at Mantinea with a church dedicated to Saint Anna, and another honoring the Holy Apostles, which served as a women's convent.
Confession Under Iconoclasm
Anthousa lived during the iconoclast campaign waged by the emperor Constantine V Copronymus against the veneration of icons. Her monastery became, according to her life, one of the most ardent defenders of Orthodoxy in the region.
When she refused to abandon the veneration of icons, she and her nuns were subjected to severe torture. Her life records that she was flogged, that burning icons were placed upon her head, and that her feet were burned with red-hot coals, after which she was sent into exile.
Because she endured this suffering for the faith yet did not die under torture, she is venerated as a Confessor rather than a Martyr.
Historical Context
The persecution Anthousa endured belongs to the first period of Byzantine iconoclasm under Constantine V, who reigned from 741 to 775. In 754 he convened the Council of Hieria, an assembly of iconoclast bishops that condemned religious images.
Constantine V was particularly hostile to monastics. His general Michael Lachanodrakon is recorded threatening resistant monks with blinding and exile, and the emperor is reported to have publicly humiliated monks and nuns. Many monastics fled the persecution, some to southern Italy and Sicily. Anthousa's confession is set against this broader campaign.
Traditional Accounts
By tradition, Anthousa is said to have foretold to the emperor's wife that she would escape death and would give birth to twins. Her life relates that, when this prediction proved true, the empress subsequently supported her.
Her troparion praises her ascetic life, her penitential tears, and her radiance, in keeping with the conventional hymnography for a monastic saint; the surviving sources preserve no detailed independent record of miracles beyond these traditional accounts.
Identity and Sources
Anthousa of Mantinea should be distinguished from Anthousa the Younger (c. 757–809), a daughter of Constantine V who became a nun and is separately venerated. The two are distinct figures who happen to share a name.
The principal record of Anthousa of Mantinea is the synaxarion preserved in the Orthodox Church in America's Lives of the Saints. She has no dedicated English-language Wikipedia article, and broader reference works surveyed carry little independent detail about her or about the iconoclast-era monastic communities of Paphlagonia. As with much of the New Martyr and obscure monastic record, her life rests chiefly on a single hagiographical tradition.