John Calvin

John Calvin (July 10, 1509 – May 27, 1564) was a French Protestant theologian during the Protestant Reformation and was a central developer of the system of Christian theology called Calvinism or Reformed theology. In Geneva, he rejected Papal authority, established a new scheme of civic and ecclesiastical governance, and created a central hub from which Reformed theology was propagated. He is renowned for his teachings and writings and infamous for his role in the execution of Michael Servetus. He is commemorated as a renewer of the church by the Lutheran Church on May 27.