Porphyry Head (San Marco, Venice)

Giuseppe Grisoni · n.d.

Medium

Gouache over black chalk, with pen and brown ink, on ivory laid paper

Original size

16.5 × 10.6 cm (6 1/2 × 4 3/16 in.)

Currently held

Art Institute of Chicago

Movement

Baroque

Rendered with quiet precision, this study captures one of the mysterious porphyry heads embedded in the exterior of Venice's Basilica di San Marco — ancient carved fragments that have puzzled scholars and captivated artists for centuries. Giuseppe Grisoni was a Flemish-born painter who spent much of his career in Italy, moving between Florence and Rome and building a reputation for sensitive portraiture and careful observation of antiquities. Working in gouache over black chalk with pen and brown ink, he brought a draughtsman's discipline to this sheet — the layered media allowing him to describe both the cool hardness of the carved stone and the quality of light falling across it. The choice of ivory laid paper adds a warmth that offsets the severity of the subject. The porphyry heads at San Marco are thought to date from late antiquity, likely Egyptian or Roman in origin, and were among the spoils brought to Venice during the Fourth Crusade of 1204 — making them as much a symbol of Venetian ambition as of ancient craftsmanship. Our hand-painted oil reproduction translates Grisoni's restrained, scholarly intimacy into a medium with greater physical presence, honouring both the archaeological gravity of the original subject and the careful eye he brought to recording it.