Letter listing for 1770–1779
- Voltaire [François Marie Arouet] to Charles Augustin Feriol, comte d’Argental and Jeanne Grâce Bosc Du Bouchet, comtesse d’Argental, 6 April 1772
- Voltaire [François Marie Arouet] to Frederick II, king of Prussia [the Great], 6 April 1772
- Voltaire [François Marie Arouet] to Jean François de La Harpe, 6 April 1772
- Voltaire [François Marie Arouet] to Maréchal Louis François Armand de Vignerot du Plessis, 3rd duc de Richelieu, 6 April 1772
- Voltaire [François Marie Arouet] to Joseph Vasselier, 6 April 1772
- Frederick II, king of Prussia [the Great] to Jean Le Rond d’Alembert, 7 April 1772
- Marie Anne Alissan de La Tour [née Merlet de Foussomme] to Jean Jacques Rousseau, 7 April 1772
- William Cowper to Joseph Hill, 7 April 1772
- Joseph Kilner to Thomas Warton, 7 April 1772
- François Louis Allamand to Voltaire [François Marie Arouet], 8 April 1772
- Register entry by Consistoire de Genève, 8 April 1772
- Jean Louis Wagnière to Frédéric Samuel Osterwald, 8 April 1772
- Charles Augustin Feriol, comte d’Argental to Voltaire [François Marie Arouet], 9 April 1772
- Catherine II, czarina of Russia [the Great] to Voltaire [François Marie Arouet], 10 April 1772
- Adrien Michel Hyacinthe Blin de Sainmore to Voltaire [François Marie Arouet], 10 April 1772
