The conservation-restoration of Leonardo da Vinci's Last Supper is an ongoing project that has spanned many centuries. Completed in the late 15th century by the Renaissance artist Leonardo da Vinci, the mural is located in the refectory of the Convent of Santa Maria delle Grazie, Milan, Italy. The Last Supper was commissioned by Ludovico Sforza, Duke of Milan in 1495, as part of a series of renovations to the convent with the intention that the location would become the Sforza family mausoleum. Work began on The Last Supper in 1495 and lasted until 1498. The scene is understood to depict the Bible verse John 13:22, showing the reactions of the Twelve Disciples, at the Last Supper, in the moments following Jesus’s announcement that one among them will betray him.