Giacomo Zanguidi, better known as Il Bertoja, was an Italian painter of the late Renaissance period, active mainly in his native city of Parma. Born in 1544, Il Bertoja was a contemporary of other Parma painters such as Parmigianino and the brothers Agostino and Ludovico Carracci. Not much is known about his early life and training, but he is thought to have been influenced by Parmigianino's mannerist style, as well as the work of Correggio, another eminent painter from Parma.
Il Bertoja's artistry is characterized by its graceful figures, elegant compositions, and the use of light and color to achieve a soft, often dreamlike quality. His works include religious subjects and mythological scenes, with some of his notable works being fresco decorations for churches and palaces in Parma. One of his significant contributions was the fresco decoration of the Rocca Sanvitale in Fontanellato, a project that exemplifies his skill in creating immersive, atmospheric spaces.
Despite his talent, Il Bertoja's career was relatively short-lived. He died young in 1574, and his output was therefore limited. Nevertheless, he left a mark on the Parma school of painting, influencing subsequent artists with his distinctive approach to Mannerism. His legacy is somewhat overshadowed by the more famous figures of his time, and as a result, Il Bertoja is not as well-known outside of art historical circles. Still, his work is appreciated for its contribution to the rich tapestry of Renaissance art in Northern Italy.