What humanoid machine did Leonardo da Vinci design as an armored knight?

Leonardo da Vinci designed a humanoid machine known as the mechanical knight.

The design was created around 1495 for a pageant in Milan sponsored by Ludovico Sforza. Leonardo’s drawings show an armored figure with an internal system of cables, gears, and pulleys. The mechanism was intended to make the figure sit, stand, raise its arms, and move its head and jaw.

The machine is often called Leonardo’s robot, but that modern label can be misleading. It was a mechanical automaton controlled by physical linkages, not a programmable electronic robot. No complete original machine has survived, and modern reconstructions rely on Leonardo’s sketches and anatomical studies.

The project reflects Leonardo’s close interest in human motion. He investigated bones, muscles, joints, and proportions, then applied those observations to mechanical design. The knight therefore connects his work in anatomy, sculpture, theater, and engineering.