The Hague's largest museum occupies an elegant residence, and is named after the man who financed its building, Prince John Maurice of Nassau-Siegen. It was built around 1640 in the purest classical style to designs by J. van Campen. The Mauritshuis today holds the Royal Collection of paintings, one of the most prestigious in the world. The number of paintings on display is not overwhelming, making it a very pleasant museum to visit.