Letter listing for 1770–1779
- Mme Denis buys land at Ferney, March 1773 by Pierre François Nicod, 31 March 1773
- Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy] to Horace Walpole, 4th earl of Orford, 31 March 1773
- Voltaire [François Marie Arouet] to Frederick II, landgrave of Hesse-Cassel, 31 March 1773
- Voltaire [François Marie Arouet] to Gaspard Henry Schérer, 31 March 1773
- Voltaire [François Marie Arouet] to Joseph Vasselier, 31 March 1773
- Voltaire [François Marie Arouet] to Gabriel Cramer, March / April 1773
- Sophie Jeanne Armande Élisabeth Septimanie de Vignerod Du Plessis, comtesse d’Egmont-Pignatelli to Gustavus III, king of Sweden, 2 April 1773
- Mlle — Girault to Jacques Henri Bernardin de Saint-Pierre, 3 April 1773
- Doctor Richard Price to William Pitt, 1st earl of Chatham [the elder], 3 April 1773
- Frederick II, king of Prussia [the Great] to Voltaire [François Marie Arouet], 4 April 1773
- Gottlob Louis von Schönberg, Reichsgraf von Schönberg to Voltaire [François Marie Arouet], 4 April 1773
- Voltaire [François Marie Arouet] to Joseph Vasselier, 4 April 1773
- père André Morellet, abbé Morellet to David Garrick, 5 April 1773
- Sophie Durey de Verven to Voltaire [François Marie Arouet], 6 April 1773
- Jean Le Rond d’Alembert to Voltaire [François Marie Arouet], 6 April 1773
