The seventh was the Crypto-Calvinistic Controversy, from 1560 to 1574, in which the Philippists in Wittenberg, Leipzig, and Dresden (Peucer, Cracow, Stoessel, etc.) endeavored gradually to supplant Luther's doctrines concerning the Lord's Supper and the majesty of the human nature of Christ by the Calvinistic teachings on these points. These secret and dishonest enemies of Lutheranism were opposed by true Lutherans everywhere, notably by the theologians of Ducal Saxony. In 1574 they were publicly unmasked as deceivers and Calvinistic schemers. The controversy was settled by Articles VII and VIII. The two last controversies were of a local nature. The first was chiefly confined to Hamburg, the second to Strassburg. In the former city John Aepinus taught that Christ's descent into hell was a part of His suffering and humiliation. He was opposed by his colleagues in Hamburg. In Strassburg John Marbach publicly denounced Zanchi, a Crypto-Calvinist, for teaching that faith, once engendered in a man, cannot be lost. The questions involved in these two articles are dealt with in Articles IX and XI, respectively. 132. Conflicts Unavoidable. When describing the conflicts after Luther's death, historians frequently deplore "the dreadful controversies of these dark days of doctrinal extremists and the polemical spirit of rigid Lutheranism." G. J. Planck, in particular, characterized them all as useless quarrels and personal wranglings of narrow-minded, bigoted adherents of Luther, who vitiated original Lutheranism by making it essentially a matter of "pure doctrine." To the present day indifferentistically inclined historians are wont to mar their pages with similar views.