In northern European folklore, the river spirit of the underworld appears frequently as a horse.

There, a soul stood chained to a statue of a river spirit.

Celtic beliefs included the existence of river spirits and the need to appease them with sacrifices.

The wife explained that one day she had been walking beside the Tweed when the river spirit appeared and ravished her.

They say they run them in the water meadows, and they're fathered by the river spirit.

My Tribe blood must have made me as dangerous in his mind as a goblin or a river spirit.

A small coin is sometimes included as an offering to the river spirits.

Tonight the village would offer the yearly tribute to the river spirit and celebrate the coming of spring.

"Captain, you said there was no river spirit!"

"We could simply launch our canoe and trust to the river spirits."