|S/he could pass...|
She was the daughter of a wealthy pagan priest, Arthemius, and a Jewish mother, Martha, in Palestine. After they died, she accepted Christian baptism, freed her slaves, and gave away her wealth. She then cut her hair, put on men's clothes, and called herself John. True, she never sported a five o' clock shadow, but no one guessed her secret. The lady, to paraphrase Steven Tyler, looked like a dude.
She joined a monastery, where everyone figured she was a eunuch. In time, she proved to be such a model monk that she rose to the office of abbot. A visiting nun got the hots for Abbot John, but finding that yearning unrequited, she cried rape. Bishop Kleopas of Eleutheropolis showed up with two angry deaconesses to investigate. John called the ladies aside and introduced himself as Susanna. Case closed, and one red-faced little nun had a lot of time saying penitential novenas to say.
Now that he didn't exist, John could no longer be abbot, so Susanna accompanied Kleopas back to Eleutheropolis. She was appointed deaconess out of respect for her wise administration, but soon after this Emperor Julian the Apostate, cursed be his name, outlawed Christianity and commenced another persecution. Susanna was tortured and, when she didn't break, left in prison to die of starvation.