Dioxippe was one of the six daughters of Danaus and Pieria. Dioxippe was one of the fifty Daniads wheo took part in the mass marriage to the fifty sons of King Aigyptos. Dioxippe married Aigyptos (the son who shared his father's namesake). The night of the mass marriage, Dioxippe along with forty-eight of her forty-nine sisters murdered their respective husbands.
When Dioxippe and the other Danaids who had murdered their husbands they were sent to Tartarus and were forced to carry water from the river Styx in a bowls (or jars according to some) with holes over to a tub which leaks at multiple parts. Dioxippe and the others were told only when they filled the tub could they wash away their sins. The Danaids continue this essentially impossible task to this very day.
King Danaus & Pieria
Spouse & Lovers
"The sons of Egyptus by Gorgo, cast lots for the daughters of Danaus by Pieria, and Periphas got Actaea, Oineus got Podarce, Egyptus got Dioxippe, Menalces got Adite, Lampus got Ocypete, Idmon got Pylarge."