Guy of Châtillon was a French nobleman and military leader during the 12th century. He is best known for his role in the Crusades, particularly the Fourth Crusade, where he became the Latin Emperor of Constantinople in 1204. His leadership was marked by both military successes and controversies, including the sacking of the city. Born into a prominent family, Guy's early life was shaped by the political dynamics of France and the Byzantine Empire. His reign as emperor was short-lived, as he faced opposition and was eventually captured. He died in 1216, leaving a complex legacy in medieval history.