Originally Johann Dobneck, he was born of poor parents at Wendelstein (near Nuremberg), from whic he obtained the punning surname Cochlaeus (spiral), for which he occasionally substituted Wendelstinus. Educated at Nuremberg from the humanist Heinrich Grieninger, he entered the University of Cologne in 1504. In 1507 he graduated, and published under the name of Wendelstein his first piece, In musicam exhort atorium. He left Cologne (May 1510) to become schoolmaster at Nuremberg, where he brought out several school manuals. In 1515 he was at Bologna, hearing (with disgust) Eck's famous disputation on the subject of usury, and associating with Ulrich von Hutten and 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, where he first entered the lists as a controversialist against the party of Luther, developing that bitter hatred to the Reformation which animated his forceful but shallow ascription of the movement to the meanest motives, due to a quarrel between the Dominicans and Augustinians. Luther would not meet him in discussion at Mainz in 1521. He was present at the diets of Wörms, Regensburg, Spires and Augsburg.
The peasants' war drove him from Frankfurt; he obtained (1526) a canonry at Mainz; in 1529 he became secretary to Duke George of Saxony, at Dresden and Meissen. The death of his patron (1539) compelled him to take flight. He became canon (September 1539) at Breslau, where he died. He was a prolific writer, largely of overgrown pamphlets, harsh and furious. His more serious efforts retain no permanent value. With humanist convictions, he had little of the humanist spirit. We owe to him one of the few contemporary notices of the young Michael Servetus.
Reference