Named in memory of the famous German philosopher Paul Heinrich Dietrich von Holbach (1723–1780), with Diderot, dálembert, Grimm, de Jaucourt and Helvetius {see, respectively, planets  (5351),  (5956),  (6912),  (6977), and  (6972)} one of the Encyclopedists. He spent almost his entire life in Paris, where his residence became the assembly of the greatest free-thinkers of his time. One of his numerous works, Système de la Nature (1770), often called “The bible of materialism”, became well known and had a great impact on the philosophy that there is nothing but material and motion. According to Holbach, the greatest enemy of natural morality is religion, a product of fantasy. (M 27463) _ _.