A Mennonite is a person who is a member of a Protestant church that arose out of the Anabaptists, a radical reform movement of the 16th-century Reformation. It was named for Menno Simons, a Dutch priest who consolidated and institutionalized the work initiated by moderate Anabaptist leaders. Mennonites are found in many countries of the world. Some core tenets of the Mennonite faith are believer’s baptism, affirmation of scripture, peace building, and a fellowship of all believers.