Louis XIV initiated the project by an order dated 24 November 1670, as a home and hospital for aged and unwell soldiers: the name is a shortened form of hôpital des invalides. The architect of Les Invalides was Libéral Bruant. The selected site was in the then suburban plain of Grenelle (plaine de Grenelle). By the time the enlarged project was completed in 1676, the river front measured 196 metres and the complex had fifteen courtyards, the largest being the cour d'honneur ("court of honour") for military parades. It was then felt that the veterans required a chapel. Jules Hardouin Mansart assisted the aged Bruant, and the chapel was finished in 1679 to Bruant's designs after the elder architect's death. The chapel is known as Église Saint-Louis des Invalides. Daily attendance was required.