The Church of the Gesù is the mother church of the Society of Jesus, a Catholic religious order. Officially named Chiesa del Santissimo Nome di Gesù all'Argentina, its facade is "the first truly baroque façade", introducing the baroque style into architecture. The church served as model for innumerable Jesuit churches all over the world, especially in the Americas. Its paintings in the nave, crossing, and side chapels became models for Jesuit churches throughout Italy and Europe, as well as those of other orders.. The Church of the Gesù is located in the Piazza del Gesù in Rome.
First conceived in 1551 by Saint Ignatius of Loyola, the founder of the Jesuits Society of Jesus, and active during the Protestant Reformation and the subsequent Catholic Counter-Reformation, the Gesù was also the home of the Superior General of the Society of Jesus until the suppression of the order in 1773.