She was born around 1100 in Sicily to a noble family, but she was so frustrated with life at court that she entered a Basilian nunnery. However, her need for solitude was still so great that she began to live in a cave on her father’s lands, later moving to a grotto above the sea shore where devoted herself to prayer until she died. Her remains were found in 1624, and when they were moved to Palermo, the plague epidemic that had ravaged the town came to an end. The cult of Rosalia was primarily spread by members of the Jesuit order. She is revered as a protector against infectious diseases.