Originally
Johann Dobneck, he was born of poor parents at Wendelstein (near
Nuremberg), from which he obtained the punning surname Cochlaeus, for which he occasionally substituted
Wendelstinus. Educated at Nuremberg by the humanist
Heinrich Grieninger, he entered the
University of Cologne in 1504, and there associated with
Hermann von Neuenahr,
Ulrich von Hutten, and other humanists. He also knew well
Carl von Miltitz, who later became
papal chamberlain. In 1507 he graduated; he left Cologne in May 1510 to become schoolmaster at Nuremberg, where he brought out several school manuals. During the years 1515 to 1519 he traveled in Italy as tutor to three nephews of
Willibald Pirkheimer. In 1515 he was at
Bologna, hearing (with disgust)
Eck's disputation on the subject of
usury, and associating with von Hutten among the humanists. He took his doctor's degree at
Ferrara (1517), and spent some time in
Rome, where he was ordained priest. In 1520 he became dean of the Liebfrauenkirche at
Frankfurt. He maintained good relations with the episcopal court of
Mainz and with
Hieronymus Aleander of Worms, who applied to him for the purpose of a discussion on the best means of opposing
Martin Luther. Cochlaeus became a controversialist against the Lutherans. He was present at the
Diets of
Worms (1521), and later at
Speyer (1526 and 1529),
Augsburg (1530) and
Regensburg (1541). In the autumn of 1523 he went to Rome as he did not feel safe at Frankfurt, but returned early in 1524. Meanwhile, his patrons and friends at Frankfurt had joined the reformers. Cochlaeus accompanied
Lorenzo Campeggio, the
papal nuncio in Holy Roman Empire, to the Convention of Regensburg as interpreter and member of the commission which discussed the reform of the clergy. His position at Frankfurt becoming untenable during the
German Peasants' War, he fled to Cologne in 1525, and in 1526 received a canonry at St. Victor's in Mainz. He attended the Diet of Speyer in 1526, but his hope of holding a disputation with Luther was not fulfilled. In 1529 he became secretary to
George, Duke of Saxony, at
Dresden and
Meissen. The death of his patron (1539) compelled him to take flight. In September 1539 he became canon at
Breslau, where he died. ==Works==