The First Kappel War ended on this day in 1529.
After several negotiations, a treaty of Peace was concluded June 25, 1529, between Zuerich, Bern, Basel, St. Gall, and the cities of Muehlhausen and Biel on the one hand, and the five Catholic Cantons on the other. The deputies of Glarus, Solothurn, Schaffhausen, Appenzell, Graubuenden, Sargans, Strassburg, and Constanz acted as mediators.
The treaty was not all that Zwingli desired, especially as regards the abolition of the pensions and the punishment of the dispensers of pensions (wherein he was not supported by Bern), but upon the whole it was favorable to the cause of the Reformation.
The first and most important of the Eighteen Articles of the treaty recognizes, for the first time in Europe, the principle of parity or legal equality of the Roman Catholic and Protestant Churches,—a principle which twenty-six years afterwards was recognized also in Germany (by the Augsburger Religionsfriede of 1555), but which was not finally settled there till after the bloody baptism of the Thirty Years’ War, in the Treaty of Westphalia (1648), against which the Pope of Rome still protests in vain. (Schaff)
Regrettably the peace would not hold, and just over 2 years later the disastrous Second Kappel War would see the end of Zwingli’s life. But not the end of his influence nor the end of his Reform.