Several historians, including Thor Hall, Kenneth Davis, and Robert Kreider, have also noted the influence of Humanism on Radical Reformers in the three originating points of departure to account for how this brand of reform could develop independently from each other. Relatively recent research, begun in a more advanced and deliberate manner by Andrew P. Klager, also explores how the influence and a particular reading of the Church Fathers contributed to the development of distinctly Anabaptist beliefs and practices in separate regions of Europe in the early 16th century, including by Menno Simons in the Netherlands, Conrad Grebel in Switzerland, Thomas Müntzer in central Germany, Pilgram Marpeck in the Tyrol, Peter Walpot in Moravia, and especially Balthasar Hubmaier in southern Germany, Switzerland, and Moravia.