Prometheus was Pandora’s brother-in-law and humanity’s fire-bringing benefactor.
In Hesiod’s story, Prometheus is the Titan who steals fire and gives it to humans. Zeus responds by ordering the creation of Pandora as a punishment or countermeasure. Pandora then marries Epimetheus, Prometheus’s brother, making Prometheus her brother-in-law in the mythic family structure.
Prometheus’s name is traditionally interpreted as “forethought,” while Epimetheus’s name is associated with “afterthought.” This contrast helps explain their different decisions: Prometheus anticipates Zeus’s danger, whereas Epimetheus accepts Pandora despite the warning.
The Pandora story is not the only ancient account of Prometheus. Other Greek traditions portray him as a creator or protector of humans and emphasize his punishment by Zeus, who chains him to a mountain. The specific family relationship to Pandora comes from the connection between Prometheus and Epimetheus in the Hesiodic narrative.