Conrad Grebel was a co-founder of the Swiss Brethren movement.
Commemorative plaque for Konrad Grebel in Neumarkt, Zürich
The Swiss Brethren are a branch of Anabaptism that started in Zürich, spread to nearby cities and towns, and then was exported to neighboring countries. Today's Swiss Mennonite Conference can be traced to the Swiss Brethren.
Dissatisfaction with the outcome of a disputation in 1525 prompted a group to part ways with Huldrych Zwingli.
Felix Manz was executed by drowning within two years of his rebaptism.