In the letter, Voltaire notes that as soon as Émilie du Châtelet has finished her great business, he will have no more pressing matters than to take advantage of the kindnesses of the Prince and Princess. He ends by asking them to accept his deepest respects. The letter is dated 15 August 1749.

The poem preceding the letter was written by Voltaire whilst in Lorraine, likely between February and December 1748. In it, he praises Lunéville and the pleasures he experienced there amongst the wise. The final lines of the poem have been heavily corrected. Besterman suggests that they may have been transcribed from the autograph original (CMV34556) which is similarly revised.

It is likely that the poem formed part of a letter to Frederick II of Prussia.

Several people, including Marie-Louis Denis [née Mignot] have corrected the MS, suggesting that it was a much-used prompt copy. There are errors in pagination throughout.