Saint Rosalia is the patron saint of Palermo, Sicily, and is celebrated for her role in protecting the city from the plague in the 17th century. Born in the 12th century, she is believed to have lived as a hermit in the mountains, dedicating her life to prayer and solitude. Her remains were discovered in a cave in 1624, and her relics became a symbol of hope for the people of Palermo. The feast day of Saint Rosalia is celebrated on September 4th, marked by a grand festival known as the Festino di Santa Rosalia. This event features a colorful procession, music, and fireworks, drawing thousands of visitors each year. Her legacy continues to inspire devotion and cultural pride among the people of Sicily.