Leonardo da Vinci’s humanoid machine is commonly called Leonardo’s robot.
Leonardo designed the machine around 1495 while working in Milan for Ludovico Sforza. Its internal framework used wooden members, cables, pulleys, and gears to reproduce several humanlike movements, including sitting, standing, and moving its arms. It was probably intended as a theatrical or ceremonial automaton rather than a practical worker.
The design was not discovered in a complete Renaissance workshop model. Engineers reconstructed it from drawings and notes in the Codex Atlanticus, and modern versions have demonstrated that the mechanism could move when properly assembled. This makes it an important early example of mechanical robotics, but not an electronic robot in the modern sense.
A common mix-up is calling it a medieval robot or claiming that Leonardo built a functioning artificial intelligence. The machine was a mechanical automaton, and the surviving evidence mainly concerns its design and later reconstructions.