Martin Luther (1483-1546) inaugurated the Protestant Reformation in 1517. He was born in Eisleben, Saxony to Hans and Margaret Ziegler Luther. Luther taught at the new University of Wittenberg from 1508 to 1546 and received a doctorate of theology in 1512. Luther’s intent was to reform the medieval Roman Catholic Church, but the firm resistance of the church led to the permanent division of Western Christianity.
The seriousness with which Luther took his religious vocation led him into a severe personal crisis: how, he wondered, is it possible to reconcile the demands of God's law with human inability to live up to the law? He found his answer in the New Testament book of Romans: God had, in the obedience of Jesus, reconciled humanity to Himself. What was required of mankind, therefore, was not strict adherence to law or the fulfilment of religious obligations, but a response of faith that accepted what God had done. Such faith would lead to an obedience based on love, not fear. On Oct. 31, 1517, Luther nailed to the door of the church in Wittenberg a list of 95 theses, or propositions. They denied the right of Pope Leo X to forgive sins by the sale of indulgences, among other challenges. Without Luther’s knowledge his words were published on the newly invented Gutenberg press and distributed throughout Germany.
The pope ordered Luther to appear before Cardinal Cajetan in Augsburg, who demanded that Luther retract all he had said. Luther refused to do this unless it could be proven from the Bible that he was wrong. In 1521 the pope excommunicated Luther and sought Emperor Charles V to enforce it. Instead the emperor called a “diet (council)” at Worms and demanded Luther to recant, which he refused. With the help of his friend the elector of Saxony, Luther hid in the castle of Wartburg, near Eisenach, where he remained in disguise. During his time he translated the New Testament into German. Eventually the emperor's preoccupation with the war in France made it safe for Luther to return to his work at Wittenberg. While Luther was in concealment some of his followers had carried the reform movement further than he had intended. On Luther's return he tried to correct these excesses but was not successful. In 1524 many of the German peasants used his teachings as a reason for revolting. In 1525 Luther married a former nun, thereby rejecting monasticism and celibacy for the clergy. The remainder of Luther's life was spent in writing, preaching, and organizing the reformed church in Saxony. He replaced the Latin service of the mass with a service in the German language and wrote many hymns that are still in use.
The Schmalkaldic League was a defensive league of Protestant princes in the Holy Roman Empire. The League was assembled by Philipp I of Hesse and John Frederick, Elector of Saxony at Schmalkalden in 1531, pledging to defend each other if their territories were attacked by Charles V. The League agreed to provide 10,000 troops and 2,000 knights for their mutual protection. In 1532, the League allied with France, and in 1538 with Denmark. The League rarely provoked Charles directly, but confiscated Church land, expelled bishops and Catholic princes, and helped spread Lutheranism throughout northern Germany. In 1544, Charles V made peace with France, with France agreeing to end their alliance. Charles and Pope Paul III began to gather an army in 1546, while the members of the League bickered amongst themselves, unable to unite in defence as they had originally planned. After a series of battles in 1538, the Pope, King Francis, and Holy Roman Emperor Charles V all agreed to a ten years’ truce at Nice.
The truce agreement with the Pope and Charles V drove the Protestants to rebellion. They were crushed at the Battle of Mühlberg on the 24th of April 1547 by the army of Charles V. Infantry of Charles was 13,000 versus 7,000 and Cavalry numbered 4,100 versus 3,000. Charles V inflicted losses of 7,000 men while sacrificing only 200. The Schmalkaldic league suffered mainly due to the indecisiveness of its officers in agreeing to battlefield actions. Their defences were weak and easily defeated by the Emperors Army in the heavy early morning mist. The matchlock musket was the weapon of choice during this era. The Battle of Mühlberg is the first confirmed case of its use. The musket had to be fired from a lying prone position, as it was three to four feet in length firing a ball of .3 - .7 inch. 10 men per 100 in Spanish companies carried them. At Mühlberg they were utilised to turn a flank at a prodigious distance across the river whereby the enemy had believed secure.
This Battle of Mühlberg essentially reclaimed Germany for the Holy Roman Empire. Just one year after the death of Martin Luther, Lutherans were in danger of being suppressed altogether throughout Germany. Holy Roman Emperor Charles V’s biography reveals the significance of the Battle of Mühlberg:
The ecclesiastical policy of Charles was Roman Catholic without being ultra montane. He kept his coronation oath. All his antecedents were in favour of the traditional faith. Ecclesiastics and monks surrounded him. He was thoroughly imbued with the Spanish type of piety, of which his grandmother is the noblest and purest representative. Isabella the Catholic, the greatest of Spanish sovereigns, “the queen of earthly queens.” conquered the Moors, patronized the discoverer of America, expelled the Jews, and established the Inquisition, — all for the glory of the Virgin Mary and the Catholic religion. A genuine Spaniard believes, with Gonzalo of Oviedo, that “powder against the infidels is incense to the Lord.” With him, as with his Moorish antipode, the measure of conviction is the measure of intolerance, and persecution the evidence of zeal. The burning of heretics became in the land of the Inquisition a sacred festival, an “act of faith;” and such horrid spectacles were in the reign of Philip II, as popular as the bull-fights which still flourish in Spain, and administer to the savage taste for blood. Charles heard the mass daily, listened to a sermon on Sunday and holy days, confessed and communed four times a year, and was sometimes seen in his tent at midnight on his knees before the crucifix. He never had any other conception of Christianity than the Roman-Catholic, and took no time to investigate theological questions.The power of Austria was never greater than after the victory, which Charles V gained over the Lutherans at Mühlberg. With the treaty of Schmalkald the freedom of Germany lay, as it seemed, prostrate forever, but it revived under Maurice of Saxony when he defeated Emperor Charles V in 1552, once its most formidable enemy. All the fruits of the victory of Mühlberg were lost again in the congress of Passau, and the diet of Augsburg 1555 and every scheme for civil and religious oppression terminated in the concessions of an equitable peace giving Protestantism legal recognition. Following this, Emperor Charles V attempted to reconcile the differences between the Roman Catholics and the Lutherans through a system of Theology prepared by his order. It was though rejected by both faiths. The Holy Roman Empire was dissolved in 1806.