Official approval of the MS has been recorded on p.107 in a note reading: ‘Lu et aprouvé les changemens. A Paris le 8 juin 1779. Suard. Vue l’aprobation, Permis de representer et d’imprimer ce 9 juin 1779. Lenoir.’

The MS consists of five fascicules bound together and was submitted to the censor, Crébillon by the comédiens in 1761. His official approval is noted on the verso of the final leaf: ‘Jay lu par ordre de Monsieur le Lieutenant Général de Police l’Ecueil du Sage et je crois que l’on peut en permettre la représentation. Ce 26 9bre 1761. Crébillon. Vû L’aprobation Permis de representer ce 28 9bre 1761. de Sartine.’

The MS was composed, according to a notes in Voltaire’s hand on f.79v, f.81r, f.95v, and f.98r, between 6 November 1759 and 12 February 1760. The notes states that the MS was composed at Les Délices. F.1-80 are written primarily in Wagnière’s hand with corrections by Voltaire. F.81-99 are written primarily in Voltaire’s hand. The first half seems to be a clean copy of the text. The second half appears to be a working document.

This MS appears to be an early copy of the poem, later revised by a second hand to align with the Louvain edition. More than 120 changes have been made to the text throughout.

In the spring of 1739, Voltaire dedicated La Henriade to Frederick II of Prussia and that summer Frederick penned this foreword. Following their disagreement, however, Voltaire decided to remove the dedication to Frederick and his foreword was not taken to print. It would remain unpublished for seventeen years. In 1746, Marmontel published two fragments of the foreword that would later be corrected and modified several times, including by Voltaire.