 Rousseau later expressed regret that he had not replied to Voltaire's invitation.In July 1762, after Rousseau was informed that he could not continue to reside in Bern, d'Alembert advised him to move to the Principality of Neuchâtel, ruled by Frederick the Great of Prussia.Subsequently, Rousseau accepted an invitation to reside in Môtiers, fifteen miles from Neuchâtel.