Son of the White Mare (Hungarian: Fehérlófia) is a 1981 Hungarian animated fantasy adventure film directed by Marcell Jankovics.

The story's main character is Fehérlófia (Son of the White Mare), who has superhuman powers.
It is based on the narrative poetry, under the same title, from László Arany and ancient Hunnic, Avaric and Hungarian legends; as a tribute to ancient steppe peoples.

[excerpt from english Wikipedia]

In the movie version of this traditional folk tale, Fehérlófia and Fanyüvő are the same character.