Abstract: The secularisation of ecclesiastical property started to be a strong source of tension between the pastors and the new political protestant authorities. First developed in Germany between 1538 and 1542, this debate then reached the French-speaking area thanks to Calvin who, based in Strasbourg and Regensburg, informed Farel and Viret. The Reformers adopted then a more radical method. They asserted the sacredness of these properties, the use of which was for them prohibited outside the Church.
