Because of his upbringing in the high court, Francesco was gracious and dignified, and had a very good education.[6] Shortly after they met, Francesco began studying and working at Leonardo's workshop and quickly became his master's favorite pupil, and the most devoted as well.[7] Despite this, fairly little is written about the apprentice painter, and what is known about him is almost exclusively within the context of Leonardo. In fact, other than Francesco, none of Leonardo's pupils went on to become respected artists. And although he is not well-known, Francesco is referred to as being the first person responsible for collecting, organizing, and preserving Leonardo da Vinci's notes on painting, and transforming it into a manuscript copy known as the Codex Urbinas.