Leonardo da Vinci is the emblematic figure of the Renaissance. He was not only a virtuoso painter and a visionary engineer, but also an architect, botanist, an anatomist, mathematician and much more. But the image of an old scientist with the beard of a prophet should not obscure the fact that he was also a dashing young man. Driven by an obsessive quest for perfection, his life has seen many twists and turns that “Secrets d'Histoire” tells us about, from his Florentine youth to his last years in the majestic castles of the Loire Valley, in the company of his friend King Francis I.