
This portrait shows a well-to-do man in his study. On the left of the foreground is a globe. On the right is a cello leaning against a chair. An open score rests on the table; on the right-hand page is the beginning of a sonata, the left-hand page bears the family coat of arms. Behind the dark curtain is a cupboard with the door open. Each shelf supports one large, leather-bound book, all the same size. Cornelis Troost has portrayed one of the Van der Mersch brothers, Pieter, Dirk or Johannes. They belonged to a Menonite family of Amsterdam. It is their coat of arms which is pictured in the music book.
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