"Gnesio-Lutherans" (from Greek γνήσιος = gnesios, genuine, authentic) is a modern name for a theological party in the Lutheran Church, in opposition to the Philippists after the death of Martin Luther and before the Formula of Concord. In their own day they were called Flacians by their opponents and simply Lutherans by themselves. Later Flacian became to mean an adherent of Matthias Flacius' extreme view of original sin, rejected by the Formula of Concord. In a broader meaning, the term Gnesio-Lutheran is associated mostly with the defense of the doctrine of Real Presence.