Letter listing for 1770–1779
- Frederick II, king of Prussia [the Great] to Voltaire [François Marie Arouet], 4 January 1774
- Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy] to Jean Baptiste Nicolas de Lisle, chevalier de L’Isle, 4 January 1774
- Voltaire [François Marie Arouet] to Conseil de régence de Montbéliard, 4 January 1774
- Voltaire [François Marie Arouet] to Charles Henry Chrétien Rosé, 4 January 1774
- Joseph Marie Balleydier to Jean Louis Wagnière, 5 January 1774
- Voltaire [François Marie Arouet] to François de Chennevières, 6 January 1774
- Voltaire [François Marie Arouet] to Philippe Charles François Joseph de Pavée, marquis de Villevieille, 6 January 1774
- Voltaire [François Marie Arouet] to Philippe Antoine de Claris, marquis de Florian, 6 January 1774
- Voltaire [François Marie Arouet] to Alexandre Marie François de Paule de Dompierre d’Hornoy, 6 January 1774
- Voltaire [François Marie Arouet] to Charles Joseph Panckoucke, 6 January 1774
- Frederick II, king of Prussia [the Great] to Jean Le Rond d’Alembert, 7 January 1774
- Marie Jeanne Riccoboni [née de Heurles Laboras de Mezières] to Sir Robert Liston, 7 January 1774
- René Nicolas Charles Augustin de Maupeou, marquis de Morangles to Voltaire [François Marie Arouet], 7 January 1774
- Claim for expenses against Mme Denis by Joseph Marie Balleydier, 8 January 1774
- Marie Louise Denis [née Mignot] to Marc Duval, 8 January 1774
