This artist's 1629 painting, Judas Repentant, Returning the Pieces of Silver is considered his first mature work. His 1631 work Old Man with a Gold Chain hangs in the Art Institute of Chicago. Identify this artist, one of whose earliest master works concerned the 1632 observance of an annual event; the only day of the year it was permitted to dissect a body for anatomy lessons, in this case a lesson led by Dr. Nicolaes Tulp.
Rembrandt (van Rijn)