 The Swiss Reformed Churches were started in Zurich by Huldrych Zwingli and spread within a few years to Basle (Johannes Oecolampadius), Berne (Berchtold Haller and Niklaus Manuel), St. Gall (Joachim Vadian), to cities in Southern Germany and via Alsace (Martin Bucer) to France.After the early death of Zwingli in 1531, his work was continued by Heinrich Bullinger, the author of the Second Helvetic Confession.The French-speaking cities Neuchatel, Geneva and Lausanne changed to the Reformation ten years later under William Farel and John Calvin coming from France.