Giorgio Vasari (30 July 1511 – 27 June 1574) was an Italian Renaissance painter, architect, art historian, and biographer known for his work Lives of the Most Excellent Painters, Sculptors, and Architects, considered the ideological foundation of Western art-historical writing, and still much cited in modern biographies of the many Italian Renaissance artists he covers, including Leonardo da Vinci and Michelangelo, although he is since regarded as including many factual errors, especially when covering artists from before he was born.
Vasari was a Mannerist painter highly regarded both as a painter and architect in his day but rather less so in later centuries. He was effectively what would later be called the minister of culture to the Medici court in Florence, and the Lives promoted, with enduring success, the idea of Florentine superiority in the visual arts.