When Henri Jules de Bourbon succeeded to the Condé inheritance, he continued with filial piety to carry out all the improvements and additions to Chantilly which his father had planned. François Mansart, the most fashionable architect of the period, had by that time nearly completed those unfortunate alterations which transformed the ancient feudal fortress into a species of Versailles. This Prince also built the parish church on a site presented by the Grand Condé to the inhabitants of the hamlet which had begun to form itself around the castle. He completed the menagerie and by his orders Mansart built an orangery ending in a pavilion called by him _Le Pavillon d'Oronthée_. Statues of the Grand Condé, of Bossuet, of Molière, of Le Nôtre, and of La Bruyère, executed by the most famous sculptors of the day, were placed along the Terrasse du Connétable; whilst marble copies of celebrated antiques were set up in the gardens and park. He spoke of Chantilly as "_ses delices_" and was never weary of planning improvements there. He also directed that the famous deeds of his father should be recorded on canvas by Sauveur Lecomte in accordance with directions left by that hero himself. In 1688 the Prince de Condé entertained at Chantilly the Grand Dauphin, only son of Louis XIV, with whom he was on terms of great intimacy; and the apartments in the Petit Château occupied by that Prince were those once inhabited by the Grand Condé himself. A description of the entertainments given upon this occasion may be read in the _Mercure de France_ of that year, as follows: "A great _battue_ had been arranged, and the Dauphin appears to have been delighted by the enjoyment of such splendid sport. Luncheon was served on a big stone table in the middle of the forest.[12] On the centre of the table was placed a basket containing the most exquisite fruit, and during the repast mythological deities made their appearance whilst dances were performed to the sound of appropriate music. Every day--and the Dauphin remained for seven--some new diversion was contrived." As Henri Jules de Condé grew older he seldom left Chantilly. His temper became more and more violent and difficult; and during his last years he rarely appeared at Court. He died in 1709, leaving a legacy to the Hospital at Chantilly, which had been founded by his grandmother, Charlotte de Montmorency.