BR refers her to Couturat's La Logique de Leibniz, his own Philosophy of Leibniz, and Couturat's Opuscules et Fragments Inédits de Leibniz. "The Princes and Princesses whom he wished to please were, primarily, the ruling House of Hanover on whom he depended for his livelihood, and also the Queen of Prussia, the Princess of Wales (afterwards Queen Caroline) and Prince Eugene Savoy. Voltaire did not misunderstand Leibniz as he chose to present himself to the public. Read for example Le Théodicée."