A 1523 oil painting by Lorenzo Lotto, depicting the Mystic Marriage of St. Catherine alongside the patron Niccolo Bonghi in a quiet, devotional scene.

Painted in 1523, this work by Lorenzo Lotto depicts the traditional subject of the Mystic Marriage of St. Catherine, yet it incorporates a specific contemporary figure, the patron Niccolo Bonghi. Lotto, a Venetian painter known for his psychological depth and unconventional compositions, places the figures in a domestic setting that feels both intimate and staged. The Virgin Mary sits centrally, holding the Christ Child, who reaches out to place a ring on the finger of St. Catherine. The saint kneels in profile, her posture conveying a sense of quiet devotion. To the left, Niccolo Bonghi observes the scene with a solemn expression, his presence bridging the gap between the sacred narrative and the reality of the patron. An angel stands to the right, completing the balanced arrangement of the figures.

The colour palette is characteristic of Lotto, featuring deep reds, ochres, and blues that provide a sense of weight and volume to the drapery. The lighting is focused, drawing attention to the interaction between the child and the saint, while the background remains relatively dark and simplified. This choice directs the viewer to the emotional exchange occurring at the centre of the composition. Lotto avoids the idealised perfection often found in his contemporaries, opting instead for a more grounded, human approach to religious iconography. The inclusion of the patron was a common practice in the period, yet Lotto integrates Bonghi with a level of naturalism that suggests a genuine connection to the event. The painting remains a fine example of the Venetian school, demonstrating the artist's ability to balance complex theological themes with the personal requirements of his commissions. The work is currently held in the collection of the Accademia Carrara in Bergamo.