Task: Text Categorization
Input (English): Among the more notable of his studio assistants were James Northcote and Giussepe Marchi, who toiled with him for more than three decades. He painted social scenes like Ladies Adorning a Term of Hymen and historical works, as in the large The Infant Hercules he finished at St. Petersburg. While his frequent trips abroad would result in the publication of A Journey to Flanders and Holland, it was his 15 part series of lectures that best captured his philosophy of painting. He could be simple, as when he depicted Nelly O' Brien with a dog in her lap or Samuel Johnson in profile, but he is best remembered for a much more dramatic portrait of a famous actress in costume. FTP, name this author of the Discourses on Painting, the British artist who created Sarah Siddons as the Tragic Muse.
Output (English): Fine Arts