Altenburg Conference Altenburg is a city of Germany, capital of Saxe-Altenburg, twenty-six miles south of Leipsic. A conference of divines was held there in the year 1568, by order of Augustus, prince elector of Saxony, and John William, duke of Weimar. The occasion of the call was the disputes between the different parties of Lutherans in reference to the atonement of Christ. The subjects discussed were the Majoristic, Synergistic, and Adiaphoristic contests. The debaters were in part Misnian and in part Thuringian divines. As all the transactions were in writing, the conferences 'were protracted to a great length; and on one single expression in the article on justification the discussion lasted five months. See Mosheim, Hist. of the Church, bk. 4, cent. 16, sec. 3, pt. 2, ch. 1; Sagittarius, Introductio ad Hist. Eccles. pt. 2, p. 1542.