The archetypal "Renaissance Man," Leonardo da Vinci was one of the greatest scientific minds as well as one of the greatest visual artists the human race has ever produced. The illegitimate son of a wealthy Florentine notary, Piero da Vinci, and a peasant woman named Caterina, Leonardo was born in Tuscany on April 15, 1452, in Anchiano, a town near Vinci, which is in the proximity of Florence. When he was about 17 years old, Leonardo was apprenticed as a garzone or studio boy to the workshop of the Renaissance master Andrea Verrocchio, the leading Florentine painter and artist of his day. From roughly 1469 to 1476, Leonardo acquired a variety of skills during his apprenticeship at Verrocchio's workshop, including painting altarpieces and panel pictures and making large sculptures in bronze and marble. In 1472, he joined the painters' guild, and six years later, he became an independent master. His first commission was in 1478, to paint an altarpiece for the Palazzo Vecchio's chapel. The painting was never executed. Florence's Monastery of San Donato a Scopeto commissioned Leonardo's first large painting in 1481. 'The Adoration of the Magi' was left unfinished when Leonardo left Florence for Milan approximately a year later, to work for Duke Lodovico Sforza as court artist and as an engineer. Leonardo had written the Duke of Milan touting his skills as a military engineer. In his letter, Leonardo claimed that he could build portable bridges, manufacture cannon, and build ships and war machines, including armored vehicles and catapults. He also told the Duke he could sculpt in bronze, clay and marble. He worked for the Duke of Milan for almost 18 years, painting portraits, designing festivals, and planning to sculpt a massive equestrian monument to honor the Duke's father. In addition to serving the duke as an architect and working for him as a military engineer, Leonardo assisted the mathematician Luca Pacioli in the celebrated work Divina Proportione. Leonardo's interest in science began to flourish in Milan, and as a civil and military engineer, he delved into the field of mechanics. His scientific research also embraced anatomy, biology, mathematics, and physics. It was during this period that he finished "The Last Supper," which along with the "Mona Lisa," is his most significant masterpiece. France captured Milan in 1499, and Leonardo moved to Mantua and then to Venice to seek employment. By April 1500, he had returned to Florence, though two years later, he left to work for Cesare Borgia, the Duke of Romagna, in a military capacity. The son of Pope Alexander VI, Borgia served his father as his general in-chief. Leonardo. as the duke's chief architect and engineer, supervised construction on forts in the Papal states in central Italy. Back in Florence in 1503, Leonardo served on the art commission of artists that determined the proper placing of Michelangelo's sculpture 'David. ' Florence was at war with Pisa, and Leonardo served the city-state as a military engineer while continuing his scientific research. Leonardo began to design a painting for the great hall of the Palazzo Vecchio to commemorate the Battle of Anghiari, a Florentine victory over Pisa.

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