Jacob Grimm

Jacob Ludwig Karl Grimm (4 January 1785 – 20 September 1863), also known as Ludwig Karl, was a German philologist, jurist, and mythologist. He was the discoverer of Grimm's law of linguistics. He was the co-author of the "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.
Jacob Grimm died on 20 September 1863, in Berlin, Germany from disease