Njord is one of the principal gods of the Vanir tribe of deities. He’s also an honorary member of the Aesir gods, having been sent to them during the Aesir-Vanir War along with his son, Freyr, and his daughter, Freya. Freyr and Freya's mother is Njord’s unnamed sister, who, based on linguistic evidence, is probably Nerthus.
Njord was particularly associated with wealth, fertility, the sea, and seafaring in historical Germanic religion. A saying among the Norse peoples held especially wealthy people to be “as rich as Njord.”
There is a story that tells of how Njord and the goddess Skadi met. Skadi, a giantess, had come to the Aesir seeking restitution for the slaying of her father. As part of the settlement, they agreed that she could have any of the gods she desired as her husband. She chose Njord by mistake, thinking him to be Baldr. Their marriage was short and unpleasant. Half of their time was spent in Skadi’s home in the snowy mountains, which Njord couldn’t tolerate; the other half was spent in Njord’s home, Nóatún (“The Place of Ships”), which was located on the beach. Skadi could not tolerate Njord’s home as well, and thus the two parted ways.