Jean Le Rond d'Alembert French mathematician, mechanician, physicist, philosopher and music theorist (1717-1783) (1717–1783) Parents Claudine Guérin de Tencin Louis-Camus Destouches Philippe Néricault Destouches Léopold Philippe d'Arenberg Children Siblings Charles Marie Raymond, Prince and 5th Duke of Arenberg Princess Marie Victoire d'Arenberg Partners Jeanne Julie Éléonore de Lespinasse
