The Snow-child is a widespread European folktale,[1] found in many medieval tellings.
[1] A merchant returns home after an absence of two years to find his wife with a newborn son.
She explains one snowy day she swallowed a snowflake while thinking about her husband which caused her to conceive.
[2] A Medieval play about the Virgin Mary has characters disbelieving her story of her pregnancy citing the tale.
[2] It contrasts to Aarne-Thompson type 703*, Snow Maiden, where a child really has a magical snow-related origin.