The work measures 460 x 880 cm and can be found in the convent of Santa Maria delle Grazie in Milan. Leonardo began work on The Last Supper in 1495 and completed it in 1498.
Leonardo painted The Last Supper on a dry wall rather than on wet plaster, so it is not a true fresco. Because of the method used, the piece has not withstood time very well – within 20 years of completion it already began showing signs of deterioration. It has undergone significant restoration since the 16th century. Because of this it is uncertain whether the faces still resemble Leonardo's original painting.
The most recent restoration took 22 years and on May 28, 1999 the painting was put back on display.
There is a life-sized copy of Leonardo's work in the Viennese Minorite Church.