The ceiling is a characteristic element of the gentlemen’s parlour. The ceiling mural dates from 1744 and was painted by Jacob de Wit (1695–1754). The ceiling was not actually made for the Willet- Holthuysen’s house; it began life at another house on the Herengracht. When the Willet-Holthuysens lived in the house, the gentlemen’s parlour featured an early 19th-century stucco ceiling, complete with a richly-decorated central rosette.