"Frau Holle" ( HOL; also known as "Mother Holle", "Mother Hulda" or "Old Mother Frost") is a German fairy tale collected by the Brothers Grimm in Children's and Household Tales in 1812 (KHM 24). It is of Aarne-Thompson type 480. Frau Holle (also known in various regions as Holla, Holda, Perchta, Berchta, Berta, or Bertha) was initially a pre-Christian female legendary figure who survived in popular belief well into the 19th century. The name may be cognate of the Scandinavian creature known as the Hulder. Jacob Grimm made an attempt to establish her as a Germanic goddess. Source: Wikipedia (en)