Bernini, Poussin, Vel zquez, Cortona, Borromini, Valentin: the list could go on and on. In 1630, despite their signal differences, the finest artists of the European Baroque converged on Rome, where Caravaggio was still a lingering influence. In response to the Protestant Reformation, the Catholic Church turned to masters such as these to celebrate the glories of heaven, while other patrons granted them commissions for secular works. With splendid...