Leonardo's Last Supper

Painted between 1495 and 1498 on the refectory wall of Santa Maria delle Grazie in Milan, The Last Supper captures the exact instant when Jesus announces that one of the apostles will betray him. Leonardo freezes thirteen simultaneous reactions into a single central gesture: Christ's outstretched hand becomes the axis of the entire painting. The technical experiment — tempera on dry plaster — would soon cause deterioration that modern restorations struggle to stabilize. The work survives as image and as conservation challenge.

Leonardo breaks with traditional iconography by placing Judas on the same side as the other apostles, without halo or immediate visual isolation. Each disciple reacts through bodily movement — surprise, indignation, denial — orchestrated in four groups of three around the table. Perspective converges toward Christ's head, illuminated by a window opening onto a luminous landscape. Painted between 1495 and 1498 on the refectory wall of Santa Maria delle Grazie in Milan, The Last Supper captures the exact instant when Jesus announces that one of the apostles will betray him.

The choice to paint dry on the cloister wall, rather than in true fresco, allows for slow reworking but makes the work vulnerable to humidity. By the sixteenth century, the surface was flaking. A 1943 bombing destroys the refectory; miraculously, the wall bearing the painting resists beneath sandbags. Leonardo freezes thirteen simultaneous reactions into a single central gesture: Christ's outstretched hand becomes the axis of the entire painting.

Twentieth and twenty-first century restorations sparked controversy: some historians believe they erase authentic traces of Leonardo. Nevertheless, The Last Supper remains one of the most widely disseminated Christian images, copied, parodied, analyzed as a manifesto of Renaissance psychology of gaze. The technical experiment — tempera on dry plaster — would soon cause deterioration that modern restorations struggle to stabilize.