 Married to the daughter of the wealthy Duke of Brittany, Louis had the castle modified, and in 1373 commissioned the famous "Apocalypse Tapestry" from the painter Hennequin de Bruges and the Parisian tapestry-weaver Nicolas Bataille.Louis II (Louis I's son) and Yolande d'Aragon added a chapel (1405–12) and royal apartments to the complex.The chapel is a "sainte chapelle", the name given to churches which enshrined a relic of the Passion.