He designed and began the rebuilding of Santa Maria in Traspontina in  the Borgo (from 1566, not finished until 1668), where the travertine for its facade was quarried from the Colosseum.
He oversaw the rebuilding of Santa Maria in Traspontina in the Borgo (first started in 1566 and not finished until 1668), where he sourced the travertine for its exterior walls from the historic Colosseum.