In 1727, Charpentier's heirs sold his autograph manuscripts (28 folio volumes) to the Royal Library, today the Bibliothèque nationale de France. Commonly known as the "Mélanges", or "Meslanges", and now available as facsimiles published by Minkoff-France, these manuscripts were divided by Charpentier himself into two series of notebooks – one bearing Arabic numbers and the other Roman numbers, and each notebook numbered chronologically. These manuscripts (and their watermarks) have permitted scholars not only to date his compositions but also to determine the events for which many of these works were written.