What mechanical knight did Leonardo da Vinci design around 1495?

Leonardo da Vinci designed a robot knight around 1495.

The design was prepared for a pageant at the court of Ludovico Sforza in Milan. Leonardo’s armored figure was intended to sit, stand, raise its arms, and move its head and jaw through cables and pulleys operated by an internal mechanism. The machine was probably meant as theatrical entertainment rather than a practical soldier.

Leonardo’s notes and anatomical studies helped him plan how a human-shaped mechanism could reproduce selected movements. The surviving evidence comes from drawings and descriptions rather than a complete original robot. No confirmed Renaissance example has survived.

In 2002, robotics expert Mark Rosheim built a working reconstruction based on Leonardo’s sketches. The modern machine demonstrated that several of the proposed motions were mechanically plausible. It is often called a robot, although that modern term can obscure the fact that it was a manually operated automaton.