Giovanni di Cosma: A Master of Roman Fresco Painting Giovanni di Cosma (active 1290s in Rome) stands as a pivotal figure within the burgeoning artistic landscape of late Medieval Italy, particularly renowned for his contributions to monumental fresco painting—a technique that would define the aesthetic sensibilities of the era. While biographical details remain scarce, scholarly consensus points to him as a member of the Cosmati family, a dynasty celebrated for their unparalleled skill in crafting intricate marble sculptures and architectural embellishments, primarily serving papal commissio…