Anabaptists
Anabaptists (from Neo-Latin anabaptista, from the Greek ἀναβαπτισμός: ἀνά- "over again" and βαπτισμός "baptism") are Christians of the Radical Reformation of 16th-century Europe, considered Protestant by some, although some consider Anabaptism to be a distinct movement from Protestantism. The Amish, Hutterites, and Mennonites are direct descendants of the movement.
Read more about Anabaptists.