Luther, Zwingli, and Calvin preserved infant baptism against the attacks of more radical reformers including Anabaptists, and with it, sponsors at baptism.
Jan Dubčanský ze Zdenína (1490–1543) was a Moravian nobleman, printer of the first Czech language book in Moravia, and founder of the Zwinglian but pacifist Habrovany Brethren, later led by Matěj Poustevník.
In 1519 he became Zwingli’s associate at Einsiedeln (in Schwyz), where his reform-minded tendencies showed through clearly.
In 1534 De Keyser printed the second, revised edition of Tyndale's New Testament as well as Joye's fresh edition of the Davids Psalter based on Zwingli's Latin Psalter, and Joye's translation of the book of Jeremiah.
The Zwingli and Calvin branches had each their theological distinctions, but in 1549 under the lead of Bullinger and Calvin they came to a common agreement in the Consensus Tigurinus (Zürich Consent), and 1566 in the Second Helvetic Confession.
In theology he followed Zwingli, and at the sacramentarian conferences of Heidelberg (1560) and Maulbronn (1564) he advocated by voice and pen the Zwinglian doctrine of the Lord's Supper, replying (1565) to the counter arguments of the Lutheran Johann Marbach, of Strasbourg.