October 1, 1529 – October 4, 1529

Luther and Zwingli fail to agree on the Eucharist at the Marburg Colloquy

Philip of Hesse hosts Luther, Zwingli, Melanchthon, Oecolampadius and Bucer at Marburg Castle on 1–4 October 1529. They agree on fourteen of fifteen points but not on Christ's presence in the Eucharist, so the Protestants stay divided.