Complex sentence: Some of their works are in Santa Maria in Trastevere, while in San Spirito in Sassia is the history of San Giacomo del Zucchi, and in Santa Cecilia,'St. Agnes,' and the' Martyrdom of St. Urban.
Split into simpler sentences: Some of their works are in Santa Maria in Trastevere. In San Spirito in Sassia is the history of San Giacomo del Zucchi; in Santa Cecilia,'St. Agnes,' and the' Martyrdom of St. Urban.