Grossmünster in the context of "St. Peter, Zürich"

The Fraumünster (German pronunciation: [fʁaʊ̯ˈmʏnstɐ]; lit. in English: Women's Minster) is a church in Zurich, Switzerland, which was built on the remains of a former abbey for aristocratic women and which was founded in 853 by Louis the German for his daughter Hildegard. He endowed the Benedictine convent with the lands of Zurich, Uri, and the Albis forest, and granted the convent immunity, placing it under his direct authority. Today, it belongs to the Evangelical Reformed Church of the canton of Zurich and is one of the four main churches of Zürich, the others being the Grossmünster, Prediger and St. Peter's churches.

Huldrych or Ulrich Zwingli (1 January 1484 – 11 October 1531) was a Swiss Christian theologian, musician, and leader of the Reformation in Switzerland. Born during a time of emerging Swiss patriotism and increasing criticism of the Swiss mercenary system, he attended the University of Vienna and the University of Basel, a scholarly center of Renaissance humanism. He continued his studies while he served as a pastor in Glarus and later in Einsiedeln, where he was influenced by the writings of Erasmus. During his tenures at Basel and Einsiedeln, Zwingli began to familiarize himself with many criticisms Christian institutions were facing regarding their reform guidance and garnered scripture which aimed to address such criticisms.

In 1519, Zwingli became the Leutpriester (people's priest) of the Grossmünster in Zurich where he began to preach ideas on reform of the Catholic Church. In his first public controversy in 1522, he attacked the custom of fasting during Lent. In his publications, he noted corruption in the ecclesiastical hierarchy, promoted clerical marriage, and attacked the use of images in places of worship. Among his most notable contributions to the Reformation was his expository preaching, starting in 1519, through the Gospel of Matthew, before eventually using Biblical exegesis to go through the entire New Testament, a radical departure from the Catholic mass. In 1525, he introduced a new communion liturgy to replace the Mass. He also clashed with the Anabaptists, which resulted in their persecution. Historians have debated whether or not he turned Zurich into a theocracy.

Heinrich Bullinger (18 July 1504 – 17 September 1575) was a Swiss Reformer and theologian, the successor of Huldrych Zwingli as head of the Church of Zürich and a pastor at the Grossmünster. One of the most important leaders of the Swiss Reformation, Bullinger co-authored the Helvetic Confessions and collaborated with John Calvin to work out a Reformed doctrine of the Lord's Supper.

The Predigerkirche is one of the four main churches of the old town of Zürich, Switzerland, besides Fraumünster, Grossmünster and St. Peter. First built in 1231 AD as a Romanesque church of the then Dominican Predigerkloster, the Basilica was converted in the first half of the 14th century, the choir between 1308 and 1350 rebuilt, and a for that time unusual high bell tower was built, regarded as the highest Gothic edifice in Zürich.