Jacob Ludwig Carl Grimm (also Karl; 4 January 1785 – 20 September 1863) was a German philologist, jurist and mythologist. He is best known as the discoverer of Grimm's Law (linguistics), the author (with his brother) of the monumental Deutsches Wörterbuch, the author of Deutsche Mythologie and, more popularly, as one of the Brothers Grimm, as the editor of Grimm's Fairy Tales.