Leonardo da Vinci designed a robot knight for a 1495 court spectacle in Milan.
The machine was commissioned for festivities organized by Ludovico Sforza, the Duke of Milan. Leonardo’s notes and drawings show a humanoid figure in armor containing a system of pulleys, cables, and gears. The mechanism could reportedly move its arms and jaw and sit or stand through coordinated movements.
The device is often called Leonardo’s robot or Leonardo’s mechanical knight. It was not an electronic robot and had no autonomous computer control. Its operation depended on mechanical power and a carefully arranged internal linkage, making it an automaton in the historical sense.
Italian engineer and robotics expert Mario Taddei reconstructed the design in the early 21st century using Leonardo’s surviving diagrams. The reconstruction helped demonstrate that the knight’s movements were mechanically plausible. The original machine itself has not survived, so modern examples are interpretations rather than the lost court device.