Zwingli was a Swiss theologian who championed the Reformation in Switzerland. Inspired by his studies rather than a crisis of faith, he challenged the ritualism, decadence, and hierarchy of the Catholic Church, and his stance on the sacrament of communion brought him into conflict with both Martin Luther and the Church. After a Zurich council approved many of his proposals, organs were destroyed, priests were allowed to wed, and the liturgy was simplified. In what 1531 battle was Zwingli killed? Discuss