The urn relates to that illustrated in a design by the Rome-trained architect Louis-Joseph Le Lorrain illustrated in C.-H. Watelet's Raccolta Di Vasi, 1752 (S. Eriksen, Early neo-classicism in France, London, 1974, fig. 297). A two-branch light of this pattern features in a 1769 portrait of the Marquis de Marigny executed by L.-M. Van Loo (Eriksen, op. cit., fig. 442).