HYACINTHE-RENÉ DROUIN. - Dominican theologian, b. in Toulon c. 1680, d. in Ivrea (Piedmont) on 30 Sept. 1740. He entered the Order in Toulon (1696), earned his degree in Paris (1713), where he served as regent in the convent of Saint-Honoré. In 1719 he taught theology at Caen. However, in 1722 he was forced to leave the city due to the hostility of other religious who were at odds with his uncle, the noted Dominican G.-G. Serry. He accepted the invitation of Victor Amadeus II and for a decade taught theology in Chambéry. Finally, he retired to Ivrea.
Notable is his *De re sacramentaria contra perdulles haereticos libri decem duobus tomis comprehensi* (Venice 1737), a powerful and highly personal work that saw multiple editions, especially under the care of Fr. Patuzzi (2nd ed., ibid. 1750).