become moralizing, but was more a "comedy of manners" (comédies des moeurs), showing the hypocrisy of those in the higher positions (i.e., the higher bourgeoisie or the impoverished middle-classes). Pieter wrote only a single tragedy, at the end of his life. Het wederzijds huwelijksbedrog (The Mutual Marriage Deception) In this comedy, Lodewijk meets Charlotte. Lodewijk is an aristocrat, in great financial difficulties but acting as if he is a rich Polish count. He has a friend called Jan, who proposes to act out one of his barons, so to flirt with the maid of Charlotte: Klaartje. Jan served under Karel in the army, but left as a traitor. Charlotte also comes from the impoverished aristocracy, and acts as if her situation is more prosperous as well. It is very comical to see how both sides try to convince the other that they are extremely wealthy. This 'mutual marriage deception' comes to light when Karel, the brother of Charlotte, unmasks everybody at the theatre. Charlotte and Lodewijk get married anyway, because they have fallen in love with each other. As for Klaartje and Jan, she is disgusted with Jan for lying to her, so she breaks up with him. After that, she tries to get back with her former lover, Hans (who she broke up with when Jan started flirting with her) but he wants nothing of her. In the end, the traitor Jan takes flight from the group, as to avoid punishment from his captain: Karel. De spiegel der vaderlandse kooplieden (The Mirror of Dutch Merchants) This work also holds up a mirror to the audience. Two generations are placed opposite each other: those born in the 17th and 18th centuries. Ernst and Hendrik are conscientious seventeenth-century merchants who, through hard work, gain position. Their sons represent the following, 18th century generations, and are called Lichthart (light heart), husband to Kwistgoed, and Losbol (loose-liver), husband of Zoetje. They waste all the money that their fathers have made and the whole family fortune is lost. De Graaven van Holland, in jaardichten beschreven Bundle of his yearly poems for the city of Haarlem, which formed a series on the Counts of Holland, were compiled with engravings by his nephew Hendrik Spilman in 1745. His work on the history of Haarlem was never published, but his manuscript was used by Gerrit Willem van Oosten de Bruyn in 1765. Works Spiegel der Vaderlandsche Kooplieden