In 1530, Constance signed the Tetrapolitan Confession, the „Zwinglian“ counterpart of the Augsburg Confession, which was neither accepted by the Lutherans nor the Zwinglians.
Pada 1530, Konstance menandatangani Pengakuan Tetrapolitan, mitra "Zwingli" terhadap Pengakuan Augsburg, yang tidak diterima oleh baik Lutheran maupun Zwinglian.