The lack of maintenance after Louis XIV’s death led to a progressive disappearance of the pools and cascades. In the early 19th century, only an abandoned clearing remained in the weeded grove.

Documentary research prior to the restoration of the Bosquet: An in-depth two year long study of historical documents from the 17th and 18th centuries took place before the actual restoration work could begin – in order to fully re-establish the hydraulic network, the fountain structure and the composition of each water effect. A comparative analysis studied the different plans, paintings, engravings as well as the description and accounts of the time, written by Louis XIV’s hydraulic engineers, technicians, and by the courtiers invited by the King to visit the Bosquet. Archival documents provided additional precious information about details of the decoration elements such as the material used for roccaille, shell work, millstone scales, sandstone concretions, Indian Ocean shells, fragments of molten glass, along with the assembly techniques and the association of water effects. The archeological dig of the site revealed surprising vestiges of the original structure such as a state ramp installed in the southern part of the bosquet to facilitate access for King Louis XIV’s strolls in a wheelchair, at the end of his reign.