Portrait of Pietro Aretino, by Tiziano Vecellio known as Titian, 1545, 16th Century, oil on canvas, cm 96,7 x 77,6 . Italy, Tuscany, Florence, Palazzo Pitti, Palatine Gallery. The long-standing fellowship between Pietro Aretino and Titian is marked by the many letters mailed by the Tuscan versatile writer and some portraits. Detail. Male portrait bust bearded man scholar man of letters Pietro Aretino overgarment red pink rose colored highlights chain.