Leonardo da Vinci designed a robot knight, a mechanical figure intended for a Milanese pageant.
The design dates to around 1495 and was developed while Leonardo worked for Ludovico Sforza in Milan. The armored figure was designed to sit, stand, raise its visor, and move its arms through an internal system of pulleys, cables, and gears. It is one of the earliest known designs for a humanoid machine with a coordinated mechanical structure.
Leonardo’s notes do not clearly document a completed performance by the figure. The idea was rediscovered by modern researchers studying the Codex Madrid manuscripts and related drawings. In 2002, Mark Rosheim constructed a working model based on Leonardo’s plans, helping demonstrate that the mechanism could produce several intended movements.
The robot knight was not a programmable computer or an intelligent machine. Its actions would have followed fixed mechanical linkages. The design is nevertheless significant because it treats the human body as a system of joints, frames, and actuators.