German monk Martin Luther challenged the dogmas of Roman Catholicism and the authority of the pope, in his Ninety-five Theses, and was thus excommunicated. His German translation of the Bible enriched the German culture, and his marriage set an example for clerical marriage. His teachings are now known as Lutherans.
Hildegard of Bingen was a German writer, composer, Christian mystic, visionary, philosopher, polymath, and Benedictine abbess of the High Middle Ages. Apart from being the most-recorded composers of sacred monophony in modern history, Hildegard of Bingen is also widely regarded as the founder of scientific natural history.
Albertus Magnus was a friar, bishop, and philosopher. Regarded by some as the greatest German theologian and philosopher of the Middle Ages, Albertus' writings have inspired the iconography of the archivolts and tympanum of the 13th-century portal of Strasbourg Cathedral. Remembered for his contribution to academics, several education institutions have been named after Albertus Magnus.
George Muller was a Christian evangelist. He was one of the founders of the Plymouth Brethren movement and the director of the Ashley Down orphanage in Bristol, England. He is credited to have cared for over 10,000 orphans during his lifetime. He also opened numerous schools. Following his death, his work was continued by The George Müller Foundation.