The Last Supper (Leonardo Da Vinci) - Damage and Restorations

Damage and Restorations

As early as 1517 the painting was starting to flake. By 1556 — fewer than sixty years after it was finished — Leonardo's biographer Giorgio Vasari described the painting as already "ruined" and so deteriorated that the figures were unrecognizable. In 1652 a doorway was cut through the (then unrecognisable) painting, and later bricked up; this can still be seen as the irregular arch shaped structure near the center base of the painting. It is believed, through early copies, that Jesus' feet were in a position symbolizing the forthcoming crucifixion. In 1768 a curtain was hung over the painting for the purpose of protection; it instead trapped moisture on the surface, and whenever the curtain was pulled back, it scratched the flaking paint.

A first restoration was attempted in 1726 by Michelangelo Bellotti, who filled in missing sections with oil paint then varnished the whole mural. This repair did not last well and another restoration was attempted in 1770 by Giuseppe Mazza. Mazza stripped off Bellotti's work then largely repainted the painting; he had redone all but three faces when he was halted due to public outrage. In 1796 French revolutionary anti-clerical troops used the refectory as an armory; they threw stones at the painting and climbed ladders to scratch out the Apostles' eyes. The refectory was then later used as a prison; it is not known if any of the prisoners may have damaged the painting. In 1821 Stefano Barezzi, an expert in removing whole frescoes from their walls intact, was called in to remove the painting to a safer location; he badly damaged the center section before realizing that Leonardo's work was not a fresco. Barezzi then attempted to reattach damaged sections with glue. From 1901 to 1908, Luigi Cavenaghi first completed a careful study of the structure of the painting, then began cleaning it. In 1924 Oreste Silvestri did further cleaning, and stabilised some parts with stucco.

During World War II, on August 15, 1943, the refectory was struck by a bomb; protective sandbagging prevented the painting from being struck by bomb splinters, but it may have been damaged further by the vibration. From 1951 to 1954 another clean-and-stabilise restoration was undertaken by Mauro Pelliccioli.