Luther and Zwingli became estranged on several issues, such as images. They denounced each other at the [[Marburg Colloquy]] in 1529 over the real issue of the [[real presence]] of Christ during the Lord's supper. | Luther and Zwingli became estranged on several issues, such as images. They denounced each other at the [[Marburg Colloquy]] in 1529 over the real issue of the [[real presence]] of Christ during the Lord's supper. |