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The Collegiate Church of S. Maria Maggiore was a Romanesque church dated the year 1240 in the nave, then restored in 1675 (as reported in an epigraph on the facade) by Filippo Cesarini.

Inside is the tombstone of the Colonna, a canvas of Baciccio depicting the Tragedy of Calvary and one of St. Philip (San Filippo) attributed to Domenichino.