The oratory was a Gothic made of chalk stones (tuffeau) and decorated with murals painted by Leonardo's followers: there is an Annunciation, a Last Judgement and a final painting called Virgo Lucis above the door, which may have gave its name to the castle. The museum also includes a copy of 'The oratory was built in 1492 by Charles VIII for his wife, Anne of Brittany. It was a chapel of the Gothic movement made with chalk stones (tuffeau) and decorated with murals painted by Leonardo's disciples: there is an Annunciation, a Last Judgement and a final painting called Virgo Lucis above the door, which may have gave its name to the castle.