Hervaeus Natalis[1] (c. 1260, Nédellec, diocese of Tréguier, Brittany[2] – 1323), also known as de Nédellec, was a Dominican theologian, the 14th Master of the Dominicans, and the author of a number of works on philosophy and theology. His many writings include the Summa Totius Logicae, an opusculum once attributed to Thomas Aquinas.