A detail from the Maestà altarpiece, this work by Duccio depicts the moment Judas Iscariot negotiates his betrayal of Christ.

This panel is a component of the Maestà, the large altarpiece commissioned for the Siena Cathedral. Duccio di Buoninsegna, a central figure in the development of Sienese painting, utilised tempera and gold leaf to articulate this narrative scene. The work depicts the moment Judas Iscariot approaches the high priests to accept payment for his treachery.

Duccio employs a clear architectural setting to frame the figures. The structure, featuring pointed arches and ribbed vaulting, provides a sense of enclosure for the group. The figures are arranged in a dense cluster, their interactions defined by subtle gestures and varied facial expressions. The artist uses a palette of muted earth tones, contrasted by the garments of the figures, which are rendered with careful attention to drapery and volume.

Unlike the rigid formality often associated with earlier Byzantine traditions, Duccio introduces a degree of human observation. The interaction between Judas and the priests is captured with a focus on the exchange of coins, a detail that anchors the narrative. The spatial arrangement remains relatively shallow, typical of the period, yet the architectural elements suggest a defined environment. The light source is consistent, casting soft shadows that help to model the forms of the figures. This work demonstrates the transition toward a more naturalistic approach in Italian painting, where the focus shifts to the psychological weight of the event. The preservation of the original tempera surface allows for an appreciation of the delicate brushwork and the careful application of colour that characterises Duccio's contribution to the Sienese tradition.