In Assassin's Creed II, which Renaissance inventor supplies Ezio with equipment?

In Assassin's Creed II, Leonardo da Vinci supplies Ezio with equipment.

Leonardo is Ezio's friend and an inventive ally in the game's Renaissance Italy setting. He studies pages from the Codex left by Altaïr and uses his engineering knowledge to create or improve tools for Ezio, including the hidden blade and other devices. His workshop scenes connect historical creativity with the game's fictional Assassin technology.

Michelangelo appears in the game world and was a real Renaissance artist, but he is not Ezio's equipment supplier. Machiavelli is a major Assassin ally and political thinker, while Galileo belongs to a later generation. These figures are all linked to Italian history or the franchise's Renaissance atmosphere, which can cause mix-ups.

The real Leonardo da Vinci lived from 1452 to 1519 and worked in painting, engineering, anatomy, and natural philosophy. Assassin's Creed II fictionalizes his relationship with Ezio while placing him among recognizable historical events and people.