What type of mechanical device did Leonardo da Vinci design in the form of a knight?

Leonardo da Vinci designed a humanoid robot in the form of an armored knight.

Leonardo’s mechanical knight dates to around 1495 and was probably created for a celebration at the court of Ludovico Sforza in Milan. The machine was built around a humanlike frame containing gears, cables, and pulleys. According to reconstructions based on Leonardo’s drawings and notes, it could perform movements such as sitting, standing, raising its arms, and moving its head and jaw.

It was not a programmable electronic robot in the modern sense. The knight was a clockwork automaton powered by mechanical components and designed to repeat specific movements. Because no original machine survives, historians and engineers have reconstructed its likely operation from Leonardo’s technical material.

The design demonstrates Leonardo’s knowledge of anatomy, mechanics, and theatrical automation. It is also separate from his self-propelled cart, another machine sometimes labeled an early robot but based on a wheeled spring mechanism rather than a humanoid body.