She was daughter of Sinibald, lord of Roses and Quisquina, who deduced his pedigree from the imperial family of Charlemagne. She was born at Palermo in Sicily, and despised in her youth worldly vanities, made herself an abode in a cave on Mount Pelegrino, three miles from Palermo, where she completed the sacrifice of her heart to God by austere penance and manual labor, sanctified by assiduous prayer and the constant union of her soul with God.
She died in 1160. Her body was found buried in a grotto under the mountain in the year of the jubilee, 1625, under pope Urban VIII, and was translated into the metropolitical church of Palermo, of which she was chosen a patroness. To her patronage that island ascribes the ceasing of a grievous pestilence at the same time. On her life and miracles, see the disquisitions of Stilting the Bollandist which fills one hundred and forty pages.
(Adapted from Fr. Butler’s Lives of the Saints)