The Danaid, one of the fifty daughters of King Danaus of Egypt, is a figure from Greek mythology associated with eternal punishment.

According to the myth, the Danaids were forced into marriage with the fifty sons of Aegyptus, but on their wedding night, they were ordered by their father to kill their husbands.

All obeyed except Hypermnestra, who spared her husband Lynceus. As a result of this crime, the Danaids were condemned in the afterlife to fetch water endlessly, pouring it into bottomless vessels as a symbol of their eternal punishment.

A representation of one such Danaid, dated to the 1st century BCE–1st century CE, was discovered in the Villa of the Papyri at Herculaneum, Italy, reflecting both the myth’s moral themes and the Roman fascination with Greek legends.