Conversion and Martyrdom
The synaxarion records that Memelchtha had been a priestess of Artemis before embracing Christianity. Her sister, already a Christian, was the human agent of her conversion, convincing her to accept baptism.
Her death followed directly upon her baptism. When pagans saw her still wearing the white baptismal robe — the customary garment of the newly illumined — they responded with violence and stoned her. The sources place her martyrdom in 344.