From BiblePortal Wikipedia

Reformers [1]

is a term usually applied in a religious sense to those who were most prominent in bringing about the great reformation of the 16th century, The principal of these were Wycliffe, Huss, Luther, Calvin, Zwingli, Melanchthon, (Ecolampadius, Bucer, Beza, Cranmer, Latimer, Ridley, and John Knox. There are also many others who are fairly entitled to be called reformers.