This iconic scene portrays thirteen figures gathered around a long, horizontal table set against a minimalist, architectural backdrop. The central figure sits calmly, framed by a central doorway that opens to a glimpse of a bright, distant landscape. Flanking this central figure are twelve others arranged in groups of three, their poses and gestures conveying varying degrees of emotional intensity, conversation, and reaction.
The composition is anchored by deep, linear perspective that draws the eye toward the center of the table. The room features a coffered ceiling and simple tapestries on the side walls, creating a sense of height and depth. Above the scene, three semicircular arches display ornate, weathered heraldic crests that bridge the transition between the human scene below and the architectural ceiling above.
The color palette is muted and aged, dominated by earthy tones, ochres, and faded reds and blues, which suggest the historical nature of the fresco. The lighting is diffused, appearing to emanate from the open windows in the background and the light falling across the table, highlighting the figures' expressive faces and hand gestures.
This is a classic depiction of a monumental Renaissance fresco. The textures throughout appear weathered, showing the signs of time and pigment degradation, which adds a somber and reverent mood to the overall presentation of this historical narrative.