The ill-fated mountaineer George Mallory's only book was "Boswell the Biographer"?
Louis-Édouard Boufflers-RouverelBorn 1746
Son of Édouard de Boufflers-Rouverel (d. 1763), Marquis de Boufflers, and Marie-Charlotte Hippolyte de Campet de Saujon. Married to Amelie Constance des Alleurs.
Life with Boswell:
Boswell was "[w]ell with Comte Boufflers and Jesuit governor" on May 8, 1764.