CONCA DELL'INCORONATA(Incoronata Lock 1496)so called because nearby the church of SAINT MARY CROWNED(1450-1460)the famous double facade church.It was the point where THE CANAL OF MARTESANA enter in the city.A big problem was to be solved at the time.The difference in level between this canal and the BIG NAVIGLIO.LEONARDO DA VINCI eingineered and improved locks' system for the city,as you can read from CODE ATLANTICUS.This allowed a gradual low opening to increase flow water and easy regulation of the pressure.
