Karel Jaromír Erben (Czech pronunciation: [ˈkarɛl ˈjaromiːr ˈɛrbɛn]; 7 November 1811 – 21 November 1870) was a Czech folklorist and poet of the mid-19th century, best known for his collection Kytice, which contains poems based on traditional and folkloric themes. He also wrote Písně národní v Čechách ("Folk Songs of Bohemia") which contains 500 songs and Prostonárodní české písně a říkadla ("Czech Folk Songs and Nursery Rhymes"), a five-part book that brings together most of Czech folklore. Source: Wikipedia (en)