Дед Мороз
The origins of the character of Ded Moroz predates Christianity as a Slavic wizard of winter. According to some sources in Slavic mythology, Ded Moroz, back then also called Morozko or Ded, is a snow demon. However, before the Christianity of Rus' the term demon had no negative connotation. Like with many other mythical figures only over time demons were attributed negative characteristics.