Complex sentence: The church of "Santa Maria delle Grazie" was built in 1835 over a pre-existing 16th-century edifice and houses a once highly venerated image of the "Madonna".
Split into simpler sentences: The church of "Santa Maria delle Grazie" was built here in 1835 over a pre-existing 16th century edifice. It is home to a once highly venerated image of the "Madonna".