Jacob Grimm

Jacob Ludwig Karl Grimm (4 January 1785 – 20 September 1863), also known as Ludwig Karl, was a German linguist, philologist, jurist, and folklorist. He is known as the discoverer of Grimm's law of linguistics, the co-author of the monumental Deutsches Wörterbuch, the author of Deutsche Mythologie, and the editor of Grimm's Fairy Tales. He was the older brother of Wilhelm Grimm, of the literary duo the Brothers Grimm.