[1] Agnes was a rich Roman heiress who was martyred after refusing an engagement due to her Christian religion.

[2] A few days after Agnes' death, Emerentiana, who was a catechumen still learning about Christianity before being officially baptised, went to the tomb to pray and was suddenly attacked by the pagans.

[1] There was a real Roman martyr named Emerentiana, whose cultus is very ancient, as attested by the martyrologies of Jerome, Bede, and others, but not even the date of her death is known.

[6] An altar dedicated to her with a marble relief by Ercole Ferrata depicting her martyrdom is in Sant'Agnese in Agone.

[3] Emerentiana had a tiny cameo role in Cardinal Nicholas Wiseman's novel, Fabiola, where she is seen mourning for Agnes right after the latter's martyrdom.