Ludovico Ludovisi was an Italian cardinal and statesman of the Roman Catholic Church. He was an art connoisseur who formed a famous collection of antiquities, housed at the Villa Ludovisi in Rome.

The Church of St. Ignatius of Loyola at Campus Martius is a Latin Catholic titular church, of deaconry rank, dedicated to Ignatius of Loyola, the founder of the Society of Jesus, located in Rome, Italy. Built in Baroque style between 1626 and 1650, the church functioned originally as the chapel of the adjacent Roman College, which moved in 1584 to a new larger building and was renamed the Pontifical Gregorian University.