Born out of wedlock to a successful notary and a lower-class woman in, or near, Vinci, he was educated in Florence by the renowned Italian painter and sculptor Andrea del Verrocchio. He began his career in the city, but then spent much time in the service of Ludovico Sforza in Milan. Later, he worked in Florence and Milan again, as well as briefly in Rome, attracting a large following of imitators and students. Upon the invitation of Francis I, he spent his last three years in France, where he died in 1519. Since his death, there has not been a time where his achievements, diverse interests, personal life, and empirical thinking have failed to incite interest and admiration, making him a frequent namesake and subject in culture. Leonardo is among the greatest painters in the history of art. Despite many lost works and less than 25 attributed major works—including numerous unfinished works—he created some of the most influential paintings in Western art. His magnum opus, the Mona Lisa, is his most famous work and is often considered the most famous painting in the world. The Last Supper is the most reproduced religious painting of all time and his Vitruvian Man drawing is also regarded as a cultural icon. In 2017, Salvator Mundi, attributed in whole or part to Leonardo, was sold at auction for US$ 450.3 million, setting a new record for the most expensive painting ever sold at public auction.