[104] Ib., ii. 358, 369, etc.
[105] The principality of Neuchâtel had fallen by marriage (1504) to the French house of Orleans-Longueville, which with certain interruptions retained it until the extinction of the line by the death of Marie, Duchess of Nemours (1707). Fifteen claimants arose with fifteen varieties of far-off title, as well as a party for constituting Neuchâtel a Republic and making it a fourteenth canton. (Saint Simon, v. 276.) The Estates adjudged the sovereignty to the Protestant house of Prussia (Nov. 3, 1707). Lewis XIV., as heir of the pretensions of the extinct line, protested. Finally, at the peace of Utrecht (1713), Lewis surrendered his claim in exchange for the cession by Prussia of the Principality of Orange, and Prussia held it until 1806. The disturbed history of the connection between Prussia and Neuchâtel from 1814, when it became the twenty-first canton of the Swiss Confederation, down to 1857, does not here concern us.
[106] Corr., ii. 370.
[107] Corr., ii. 371. July 1762.
[108] D'Alembert, who knew Frederick better than any of the philosophers, to Voltaire, Nov. 22, 1765.
[109] Letter to Hume; Burton's Life of Hume, ii. 105, corroborating Conf., xii. 196.
[110] Marischal to J.J.R.; Streckeisen, ii. 70.
[111] Corr., iii. 40. Nov. 1, 1762.
[112] Burton's Life, ii. 113.
[113] Voltaire's Corr. (1758). Oeuv., lxxv. pp. 31 and 80.