Giovanni Mannozzi, called Giovanni da San Giovanni was a Tuscan painter of the Baroque period. From 1608, he was trained in the workshop of Matteo Rosselli in Florence. In 1612, Giovanni entered the Accademia del Disegno. The most important works in his early career are the decorations in the Casa Buonarrotti, depicting scenes from the life of Michelangelo, and frescoes with scenes from the life of Saint Francis of Assisi in the church of Ognissanti in Florence. From 1617, he was court painter to the Medici, for whom he executed numerous commissions. After the death of Cosimo II de' Medici, he left Florence. From 1621 to 1628, Giovanni stayed in Rome, where he soon found clients. In addition to frescoes for palazzi and altarpieces for churches, Giovanni also dedicated himself to genre paintings, which were extremely popular in Rome. His traditional, humorous and earthy scenes were very much in demand among collectors. After his return to Florence, he was one of the most sought-after fresco painters until the end of his life. His most prestigious commission was the decoration of the Salone degli Argenti in the Palazzo Pitti. Giovanni di San Giovanni is also considered the inventor of the movable small fresco, consisting of a cane mesh on which a stucco ground is applied and painted.