The relations of the two parties were so delicate that it seemed as if a general religious war were imminent. In 1528, this was almost precipitated by a certain Otto von Pack, who assured the Landgrave of Hesse that he had found a treaty between the Catholic princes for the extirpation of the Lutherans and for the expropriation of their champions, the Elector of Saxony and Philip of Hesse himself. This was false, but the Landgrave armed and attacked the Bishops of Wuerzburg and Bamberg, named by Pack as parties to the treaty, and he forced them to pay an indemnity. {115} [Sidenote: Recess of Spires] The Diet which met at Spires early in 1529 endeavored to deal as drastically as possible with the schism. The Recess passed by the Catholic majority on April 7 was most unfavorable to the Reformers, repealing the Recess of the last Diet in their favor. Catholic states were commanded to execute the persecuting Edict of Worms, although Lutheran states were forbidden to abolish the office of the (Catholic) mass, and also to allow any further innovations in their own doctrines or practices until the calling of a general council. The princes were forbidden to harbor the subjects of another state. The Evangelical members of the Diet, much aggrieved at this blow to their faith, published a Protest [Sidenote: Protest, April 19] taking the ground that the Recess of 1526 had been in the nature of a treaty and could not be abrogated without the consent of both parties to it. As the government of Germany was a federal one, this was a question of "states' rights," such as came up in our own Civil War, but in the German case it was even harder to decide because there was no written Constitution defining the powers of the national government and the states. It might naturally be assumed that the Diet had the power to repeal its own acts, but the Evangelical estates made a further point in their appeal to the emperor, [Sidenote: April 25] by alleging that the Recess of 1526 had been passed unanimously and could only be repealed by a unanimous vote. The Protest and the appeal were signed by the Elector of Saxony, the Landgrave of Hesse, a few smaller states, and fourteen free cities. From the Protest they became immediately known as "the Protesting Estates" and subsequently the name Protestant was given to all those who left the Roman communion. [1] Alexander Pope. [2] Walther Koehler. {116} SECTION 4. THE GROWTH OF PROTESTANTISM UNTIL THE DEATH OF LUTHER