Eris in greek mythology was the Greek goddess of strife, the consort of Ares, and the mother of Horkos (oath). She is depicted as throwing an apple of discord among the guests at a wedding, offering it “to the fairest” to provoke an argument.
In Roman mythology she became Discordia. A.G.H.
Jordan, Michael, Encyclopedia of Gods, New York, Facts On File, Inc. 1993, p. 79