Saint Julia came from a noble family that lived in Carthage. After the capture of the city by Genseric's vandals in 439, she was captured and sold into slavery to a Syrian merchant named Eusebius. The young Christian woman served her master with zeal, remained faithful to the Lord Jesus Christ, prayed incessantly and led a strictly abstemious life.

The master made a lot of efforts to convert Julia to paganism: he persuaded, threatened, seduced, but, convinced of her firmness, retreated, filled with respect for his pious slave and left her alone.

One day, Eusebius went by ship to Gaul and, among other slaves, took Julia with him. They landed in Corsica in the area of the city of Nonza, on the day when a bull was sacrificed to the gods there. Eusebius went ashore and joined the festivities, but Julia, not wanting to worship idols, remained on the ship. When the ruler Felix of Saxo found out about this, he got Eusebius drunk, who refused to bring Julia to the shore, and when the merchant fell asleep, Felix ordered Julia to be brought and asked her to sacrifice to the gods.

The Holy Virgin was sentenced to death for her refusal, and especially for her courageous response. Julia's master woke up and found her already dying. At the same time, he and all those nearby saw bright angels surrounding the martyr, and a snow-white dove emanating from her mouth and ascending to heaven. Thus, the soul of the holy virgin Julia, after long suffering in a temporary life, flew away to eternal and blissful life. The Angel of the Lord informed the monks of the monastery on the neighboring island about the death of the holy martyr. The monks took the body of the saint and buried it in the temple of their monastery. On the medallion, the saint is depicted with a cross, testifying to her devotion to the Savior, to Whom the young virgin was likened even by the image of her death.