The Anatomy Lesson of Dr. Nicolaes Tulp

Rembrandt painted The Anatomy Lesson of Dr. Nicolaes Tulp in 1632, his first major commission in Amsterdam and the painting that transformed his career from promising Leiden practitioner to the city's most sought-after portraitist in a single year. The painting depicts the Amsterdam Surgeons' Guild's annual public anatomy demonstration, in which the city's praelector anatomiae (lecturer in anatomy) — here Dr. Tulp — dissected an executed criminal before an audience of paying spectators and guild members. Rembrandt revolutionized the group portrait tradition by creating a pyramid-shaped composition focused on the dramatic moment of instruction rather than the static line-up of previous guild portraits (most famously Thomas de Keyser's stiff examples). The seven guild members cluster around the table in states of genuine engagement and curiosity rather than formal self-presentation. Dr. Tulp demonstrates the flexor tendons of the left forearm; the anatomy is not quite accurate (the actual incision would have been made on the torso first), but the composition is psychologically and dramatically compelling. The Mauritshuis's holding of this founding work of Dutch group portraiture is one of the museum's defining treasures.

The pyramidal composition focuses on the dissected left arm of the cadaver, with the surgeons' faces lit by the pale reflected light from the body, creating an interplay of fascination and clinical attention unique in Dutch group portraiture.