Note 118 — Chapter XVII
Reading edition
Leonardo da Vinci was appointed Director of Hydraulic Operations in Lombardy by the Duke of Milan, and during the time he was painting the “Last Supper” he completed the Canal of Martesana, extending from the Adda to Milan, and improved the course of the latter river from where it emerges from the Lake of Como to the Po. By means of the Naviglio Grande, the Martesana canal establishes a water communication between the Adda and the Ticino, the Lakes of Como and Maggiore.