 The construction of San Maria della Quercia, the church of the butchers’ guild ("Università dei macellai") of Rome, appears to have been sponsored by Benedict XIII.The church is named for a miraculous image housed at Viterbo in the care of the Dominicans and, as Dominican himself, Benedict seems to have taken a keen interest in the church.Although renovated, this church is a masterpiece of the style of the 1720s – 1730s and is one of the few early 18th century churches in Rome built from the ground up and designed by a single person.