In the fourth century a Greek religious romance on the Loves of Cecilia and Valerian was written in glorification of virginal life with the purpose of taking the place of then-popular sensual romances.
Consequently, until better evidence is produced, we must conclude that St. Cecilia was not known or venerated in Rome until about the time when Pope Gelasius (496) introduced her name into his Sacramentary.
It is said that there was a church dedicated to St. Cecilia in Rome in the fifth century, in which Pope Symmachus held a council in 500.
The story of St. Cecilia is not without beauty or merit. She is said to have been quite close to God and prayed often:
"In the city of Rome there was a virgin named Cecilia, who came from an extremely rich family and was given in marriage to a youth named Valerian. She wore sackcloth next to her skin, fasted, and invoked the saints, angels, and virgins, beseeching them to guard her virginity".
Orazio Gentileschi🎨 | Saint Cecilia with an Angel