Prometheus is Pandora’s brother-in-law through her relationship with Epimetheus.
Greek mythology presents Prometheus and Epimetheus as brothers. Hesiod connects Epimetheus with Pandora, so Prometheus occupies the corresponding in-law relationship in the mythic family structure. This relationship also links the two central parts of the story: Prometheus’s theft of fire and Pandora’s arrival as Zeus’s punishment.
Prometheus is a Titan famous for helping humanity and defying Zeus. In the best-known version of the fire myth, he steals fire from the gods and gives it to mortals. Zeus responds with punishment for Prometheus and a separate punishment for humanity, represented by Pandora and the vessel.
The exact details differ among ancient sources. Hesiod’s versions are especially important for Pandora, while later writers expand Prometheus’s role as a champion of humans. Prometheus is not Pandora’s husband; Epimetheus is the figure associated with her as spouse or companion.