At thirteen years of age he followed St. Benedict to the new foundation at Monte Casino, where he grew up in the practice of a wonderful austerity and innocence of life. He had scarcely completed his twenty-first year when he was selected to establish a monastery in Sicily upon some estates which had been given by his father to St. Benedict.
He spent four years in building his monastery, and the fifth had not elapsed before an inroad of barbarians burned everything to the ground, and put to a lingering death not only St. Placid and thirty monks who had joined him, but also his two brothers, Eutychius and Victorinus, and his holy sister Flavia, who had come to visit him. The monastery was rebuilt, and still stands under his invocation.
Feast Day of Saint Placid
The Feast Day of Saint Placid is October 5. The origin of Feast Days: most saints have specially designated feast days and are associated with a specific day of the year and these are referred to as the saint's feast day.
The feast days first arose from the very early Christian custom of the annual commemoration of martyrs on the dates of their deaths at the same time celebrating their birth into heaven.