Henry IV, Duke of Saxony (d. 1541)
Henry IV the Pious, Duke of Saxony (German: Heinrich der Fromme) (16 March 1473, in Dresden – 18 August 1541, in Dresden) was a Duke of Saxony from the House of Wettin. Succeeding his brother George, Duke of Saxony, a fervent Catholic who sought to extinguish Lutheranism by any means possible, Henry established the Lutheran church as the state religion in his domains.