In Assassin's Creed II, which Renaissance artist designs equipment for Ezio?

In Assassin's Creed II, Leonardo da Vinci designs equipment for Ezio Auditore.

Leonardo is one of Ezio's closest allies during the Italian Renaissance. He examines the Codex pages Ezio collects, deciphers their mechanisms, and builds devices that improve Ezio's capabilities, including upgraded hidden blades and a flying machine.

His role combines historical biography with fictional adventure. The real Leonardo was an artist, engineer, inventor, and scientist, while the game imagines him applying his inventive talents directly to Ezio's missions.

Michelangelo, Raphael, and Donatello were also major Renaissance names, but they do not serve as Ezio's equipment designer. The game's Leonardo is the specific character responsible for interpreting the Codex and creating the devices.