Raymond of Aguilers was a medieval chronicler and a participant in the First Crusade, which took place from 1096 to 1099. He was born in the late 11th century in Aguilers, a town in southern France. Raymond is best known for his detailed account of the Crusade, providing valuable insights into the events, battles, and experiences of the crusaders. His work, titled "Historia Francorum qui ceperunt Iherusalem," serves as an important historical source for understanding the motivations and challenges faced by the crusaders. Raymond's writings highlight the religious fervor and the complex interactions between the Christian and Muslim worlds during this pivotal period in history.