His wife was Charis, one of the Graces (in the Iliad) or Aphrodite (in the Odyssey).
The connexion of the rough Hephaestus with these goddesses is curious; it may be due to the beautiful works of the smith-god (xapLEVTa Epya), but it is possibly derived from the supposed fertilizing and productive power of fire, in which case Hephaestus is a natural mate of Charis, a goddess of spring, and Aphrodite the goddess of love.
In the Odyssey, she is the wife of Hephaestus, her place being taken in the Iliad by Charis, the personification of grace and divine skill, possibly supplanted by Aphrodite, the goddess of love and beauty.
Then, by the use of magical incantation, " Charis was thought to drop her own blood into the cup " thus consecrated.
