Complex sentence: He painted a "David and Goliath" for Alexander VII in the Palazzo Quirinale, as well as frescoes (1658) for the church of San Giovanni in Oleo and a "San Giovanni in Patmos" (1660--1665) for San Giovanni in Laterano.
Split into simpler sentences: He painted a "David and Goliath" for Alexander VII in the Palazzo Quirinale. He also painted in fresco (1658) for the church of San Giovanni in Oleo, as well as a fresco of "San Giovanni in Patmos" (1660--1665) for San Giovanni in Laterano.