Da Vinci's Later Professional Life
In 1482, Leonardo joined in the service of the Duke of Milan with hopes for big bucks and new opportunities. He worked in service of the Duke for 17 years only to leave when he fell from power in 1499. While working for the Duke, Leonardo reached great heights of achievement in the Arts and Science. The Duke always made sure Leonardo was busy. He put him to work with a variety of jobs to do. He painted and sculpted for the Duke, designed thrilling festivals, and designing weapons, machines, and buildings. During the period of 1485-1490, Leonardo studied an array of subjects including nature, geometry, flying machines, mechanics, construction, and architecture. In his studies there were designs for advanced weaponry, such as a tank, submarine, and various combat devices. He also began his studies on anatomy at this time period. Additionally, his workshop was thriving in Milan packed with apprentices and students. Sadly, Leonardo didn't get much work done during these 17 years, because he was so by new subjects that he would never finish his previous projects. In these 17 years, he only completed around 6 works. Some of the works he completed included classics like "The Last Supper" and "Virgin on the Rocks."
After 1499, he spent the next 16 years of his life traveling and working around Italy. He worked for many people including Cesare Borgia. Leonardo worked as Borgia's military engineer. When Leonardo worked for Borgia he met Niccolo Machiavelli, famed author of "The Prince." Leonardo designed a bridge to span the "golden horn." During this period, Leonardo received a commission to work with Machiavelli to paint the "Battle of Anghiari." Prior to 1513, Leonardo worked in Rome on various projects for the Pope. He continued working on studies of human anatomy and physiology. To Leonardo's great frustration, the Pope would not allow him to dissect cadavers. That really cramped DaVinci's style. In 1516, he started a new position as "Premier Painter and Architect of the King" by King Francis I. At that time, Leonardo suffered paralysis in his right hand, but that didn't stop him. He produced studies for anatomy, the nature of water, and various machines.