What type of mechanical figure did Leonardo da Vinci design for a Milanese celebration?

Leonardo da Vinci designed a humanoid robot for a Milanese celebration.

Leonardo’s robot was created around 1495 for a pageant or celebration organized by Ludovico Sforza, the Duke of Milan. His notes and drawings show an armored figure that could sit, stand, move its arms, and operate its jaw through cables and pulleys.

The machine was concealed inside armor, making it appear like a mechanical knight. Leonardo probably intended it as an entertainment device rather than an autonomous machine with artificial intelligence. It would have been operated by mechanical systems and possibly by people controlling the mechanisms.

The robot was reconstructed in the early 21st century by researchers, including Mark Rosheim, using Leonardo’s surviving drawings. The reconstruction demonstrated that the mechanisms could produce the movements described. Leonardo’s robot is therefore an important example of Renaissance automata, not evidence that he built a modern programmable robot.