Rembrandt "Danaë", 1636), seeking to emulate the baroque style of Rubens. With the occasional help of assistants in Uylenburgh's workshop, he painted numerous portrait commissions both small ("Jacob de Gheyn III") and large ("Portrait of the Shipbuilder Jan Rijcksen and his Wife", 1633, "Anatomy Lesson of Dr. Nicolaes Tulp", 1632). By the late 1630s Rembrandt had produced a few paintings and many etchings of landscapes. Often these landscapes highlighted natural drama, featuring uprooted trees and ominous skies ("Cottages before a Stormy Sky", c. 1641; "The Three Trees", 1643). From 1640 his work became less exuberant and more sober in tone, possibly
Nicolaes Tulp and changed his name to Nicolaes (a more proper version of the name "Claes") Tulp. He began working in local politics as city treasurer, and in 1622, he became magistrate in Amsterdam. The career of Dr Tulp matched the success of Amsterdam. As the population of Amsterdam grew from 30,000 in 1580 to 210,000 in 1650, Dr Tulp's career as a doctor and politician made him a man of influence. He drove a small carriage to visit all the patients. Thanks to his connections on the city council, in 1628 Tulp was appointed "Praelector Anatomiae" at the Amsterdam Guild of