Ilanz Disputation (1526)
Church leaders had accused Comander and other reforming clergy of heresy, while the Three Leagues were already reducing the bishop’s political control. In January 1526, the authorities of the Three Leagues summoned a religious disputation at Ilanz in the Swiss Grisons. Johannes Comander, a reforming preacher at Chur, defended eighteen theses against representatives of the bishop. The meeting took place amid wider arguments about episcopal power, local communities, and the direction of worship. Comander’s eighteen articles set out evangelical preaching in a region whose communes prized local self-government. The debate therefore took place alongside, and helped sharpen, a struggle over who could appoint ministers and govern parish worship.1
At the close, several priests declared openly for the Reformation.Samuel SimpsonLife of Ulrich Zwingli, chapter 63
The Debate and Its Outcome
The debate itself yielded no simple verdict. Yet Comander was not condemned, and later that year the Second Ilanz Articles reduced the bishop’s temporal power and gave parishes the right to choose and dismiss their ministers. Ilanz adopted Reformed worship while neighboring communities could remain Catholic. The result was a more local settlement than the single confession imposed in some other territories.2
Why It Matters
Ilanz thus shows how a public theological debate could change the political conditions of reform without producing a unanimous theological judgment. It also reminds us that the history of the Reformation was not one uniform march: communities made different choices within the same federation.

