Father Peter celebrating Mass at Santuario della Madonna del Devino Amore.

After a miracle occurred at the gatehouse of the Castel di Leva in 1740 - a pilgrim was beset by angry dogs, and was saved through the Blessed Virgin's intercession - the site started drawing pilgrims. A chapel was built, and the Medieval fresco of the Madonna and Child before which the miracle occurred was moved from the gatehouse.

During World War II, Pope Pius XII and many Romans came here to pray for Our Lady's intercession in order that the city be spared.

The shrine presently on the site is new, and was inaugurated by Pope John Paul II on July 4, 1999.