Complex sentence: The château's art gallery, the Musée Condé, houses one of the finest collections of paintings in France (after the Louvre), with special strength in French paintings and book illuminations of the 15th and 16th centuries.
Split into simpler sentences: The château's art gallery, the Musée Condé, houses one of the finest collections of paintings in France (after the Louvre). It specializes in French paintings and book illuminations of the 15th and 16th centuries.