It is popularly supposed that Cecilia was a noble lady of Rome who, with her husband Valerian, his brother Tiburtius, and a Roman soldier named Maximus, suffered martyrdom in about 230, under the Emperor Alexander Severus. Giovanni Battista de Rossi, however, argues that instead she perished in Sicily under the Emperor Marcus Aurelius between 176 and 180, citing the report of Venantius Fortunatus, Bishop of Poitiers.
According to the story, despite her vow of virginity, her parents forced her to marry a pagan nobleman named Valerian. During the wedding, Cecilia sat apart singing to God in her heart, and for that, she was later declared the saint of musicians. When the time came for her marriage to be consummated, Cecilia told Valerian that watching over her was an angel of the Lord, who would punish him if he sexually violated her but would love him if he respected her virginity. When Valerian asked to see the angel, Cecilia replied that he could see the angel if he would go to the third milestone on the Via Appia and be baptized by Pope Urban I. After following Cecilia's advice, he saw the angel standing beside her, crowning her with a chaplet of roses and lilies.
The Ecstasy of St. Cecilia by RaphaelThe martyrdom of Cecilia is said to have followed that of her husband Valerian and his brother at the hands of the prefect Turcius Almachius. The legend about Cecilia's death says that after being struck three times on the neck with a sword, she lived for three days, and asked the pope to convert her home into a church.