Over the next few years, the cities of St. Gallen, Schaffhausen, Basel, Bienne, Mulhouse, and finally Bern (in 1528) all followed the example set by Zürich. Their subject territories were converted to Protestantism by decree. In Basel, reformer Johannes Oecolampadius was active, in St. Gallen, the Reformation was adopted by mayor Joachim Vadian. In Glarus, Appenzell, and in the Grisons, which all three had a more republican structure, individual communes decided for or against the Reformation. In the French-speaking parts, reformers like William Farel had been preaching the new faith under Bernese protection since the 1520s, but only in 1536, just before John Calvin arrived there, did the city of Geneva convert to Protestantism. The same year, Bern conquered the hitherto Savoyard Vaud and also instituted Protestantism there.