William of Conches

William of Conches (Latin: *Gulielmus de Conchis*; French: *Guillaume de Conches*; c. 1090 – c. 1154) was a medieval Norman-French scholastic philosopher who sought to expand the bounds of Christian humanism by studying secular works of classical literature and fostering empirical science. He was a prominent *Chartrain* (member of the School of Chartres). John of Salisbury, a bishop of Chartres and former student of William's, refers to William as the most talented grammarian of the time, after his former teacher Bernard of Chartres. William was born around 1085–1090 near Évreux, Normandy. He studied under Bernard of Chartres and became a leading member of the School of Chartres. His works, including *De Philosophia Mundi* and *Dragmaticon*, explored cosmology, psychology, and natural sciences, incorporating influences from Islamic philosophy and science. He developed a method of interpreting texts allegorically to reconcile them with Christian doctrine. William's theological views, particularly regarding the Trinity, led to controversy, causing him to withdraw from public teaching. He later tutored Henry, the son of Geoffrey Plantagenet, who would become King Henry II of England. William died around 1154. His writings were influential in medieval thought, particularly in areas of natural philosophy and the interpretation of classical texts.