The chiesa di San Salvatore di Ognissanti or more simply chiesa di Ognissanti (Italian: [ˈkjɛːza di oɲɲisˈsanti]; "Church of All Saints"),[n 1] is a Franciscan church located on the piazza of the same name in central Florence, region of Tuscany, Italy. Founded by the lay order of the Umiliati, the church was dedicated to all the saints and martyrs, known and unknown. [ sou...