Karel Jaromír Erben was a Czech historian, poet and writer of the mid-19th century, best known for his collection Kytice (Czech for The Bouquet), which contains poems based on traditional and folkloric themes.
He also wrote Písně národní v Čechách which contains 500 songs and Prostonárodní české písně a říkadla, a five-parted book that brings together most of the Czech folklore.
You can read read more information on http://en.wikipedia.org/wiki/Karel_Jarom%C3%ADr_Erben