What Leonardo da Vinci automaton was designed as a metal-clad knight?

Leonardo da Vinci’s metal-clad automaton was the mechanical knight.

Leonardo designed the robot around 1495, probably for a celebration at the court of Ludovico Sforza in Milan. The machine was dressed in armor and used a system of cables, pulleys, and gears to imitate human actions. Reconstructions indicate that it could sit, stand, raise its arms, and move its head and jaw.

The surviving evidence comes mainly from Leonardo’s notebooks, especially pages discovered in the Codex Atlanticus. No original robot has been found, so historians and engineers have used the drawings to infer how the mechanism worked. Modern reconstructions are interpretations rather than preserved Renaissance machines.

The mechanical knight was an automaton, not a modern autonomous robot. It had no electronic control, artificial intelligence, or independent decision-making. Its movements were produced by mechanical linkages and an operator or programmed mechanism.