French theologian, pastor, and reformer John Calvin was a major figure during the Protestant Reformation in the 16th century. He was influential in the development of the system of Christian theology later called Calvinism. Originally trained as a humanist lawyer, he broke from the Roman Catholic Church to embrace Protestantism. As an apologetic writer, he generated much controversy.

Bernard of Clairvaux, or Saint Bernard, was a 12th-century Burgundian monk, who became the abbot of the abbey of Clairvaux, founded by him. He chose to live a life of physical austerities, which caused him ailments such as anemia. He is revered as the patron saint of beekeepers and candlemakers.
Albert Schweitzer was an Alsatian polymath who won the Nobel Peace Prize in 1952 for his philosophical work, Reverence for Life. He is credited with founding the Albert Schweitzer Hospital, which was a direct result of his philosophical expression. Schweitzer is also credited with influencing the Organ reform movement, which began in the mid-20th-century.
American Trappist monk and theologian Thomas Merton was ordained a priest and named Father Louis. He was a member of the monastery Abbey of Our Lady of Gethsemani. He is remembered for his bestselling autobiography, The Seven Storey Mountain, and for his study of Eastern religions such as Buddhism.
French paleontologist and Jesuit priest Pierre Teilhard de Chardin is remembered as someone who deviated from theology to science. He discovered the fossilized remains known as the Peking man in China, but faced a lot of opposition from his religious superiors when it came to publishing his scientific thoughts.

French philosopher, Christian anarchist, and social scientist Jacques Ellul initially wished to be a naval officer but was pushed to study law. He is best remembered for his iconic volume La Technique, or The Technological Society. He taught social history and the history of law at various universities.

Medieval French philosopher, theologian, and poet Peter Abelard was born to a knight but gave up his inheritance to study philosophy and logic. He fell in love with his pupil, Héloïse, but her uncle got Abelard castrated, following which Abelard became a monk and made Héloïse a nun.

François Fénelon was a French writer, poet, theologian, and Catholic archbishop. He is best remembered for his book The Adventures of Telemachus, which was published in 1699. François Fénelon also served as a tutor of Louis, Duke of Burgundy, guiding the character formation of Louis, Grand Dauphin's eldest son.



One of the best Latin poets of his time, Theodore Beza soared to fame with his poetry collection Juvenilia. He later adopted Calvinism and succeeded John Calvin as the main spiritual leader of the Republic of Geneva. He is remembered as a major force behind the spread of Calvinism in Europe.

A 12th-century Italian bishop of Paris, Peter Lombard is remembered for his iconic book on theology, Four Books of Sentences. The book earned him the title of magister sententiarum, or “master of the sentences.” Though his teachings were challenged during his lifetime, they were approved by the fourth Lateran Council.



Levi ben Gershon was a medieval French Jewish mathematician, philosopher, astronomer, and Talmudic scholar, famed for his rigid Aristotelianism. A prolific author, he has left several works on mathematical operations, trigonometry, geometry and philosophy, including The Book of the Wars of the Lord. While his bold expression and unconventional thoughts invited criticism, they continued to exert influences till nineteenth century.




Prosper of Aquitaine was a writer and the first continuator of the Universal Chronicle, which was originally written by Jerome of Stridon. A follower of Augustine of Hippo, Prosper of Aquitaine's writings have long attracted admirers for their classical qualities. Some of his most important works include De gratia Dei et libero arbitrio and De vocatione omnium gentium.

Jean Daniélou was a French cardinal, Jesuit, theologian, patrologist, and historian. He is credited with co-founding the Sources Chrétiennes book series, a collection of patristic texts. He also served as a professor at the Catholic University of Paris, where he later became the dean.






Richard of Saint-Victor was a Medieval Scottish theologian and philosopher. One of the most influential and prominent religious thinkers of his generation, Richard served as a prior of the Augustinian Abbey of Saint-Victor from 1162 to 1173. A prolific writer, Richard of Saint-Victor published several important books, including The Book of the Twelve Patriarchs.






















