In Greek mythology, the Danaides were the fifty daughters of Danaus who were forced to marry their fifty male cousins but killed them on their wedding night (except for Hypermestra who, genuinely loving her husband Lynceus spared him) with daggers provided by Danaus. The forty-nine murderers were subsequently condemned in the underworld to forever ... Found on http://www.probertencyclopaedia.com/browse/D1D.HTM