The tournament at Ashford was a real event that took place in 1240 and was one of the most prestigious tournaments in Europe.
The character of Geoffrey Chaucer, the poet and chronicler, is based on a real person who lived during the same time as the film is set.
Some of the jousting techniques and weapons depicted in the film are accurate to the period.
The character of Ulrich von Lichtenstein, a German knight known for his flamboyant and eccentric behavior, is based on a real person.
The idea of a commoner disguising himself as a knight to compete in tournaments was not uncommon during this period and was known as "disguised knights" or "knights of the mystery".
The practice of ransoming captured knights was common in medieval times, and the film depicts this accurately.
The depiction of the Crusades and the role of the Knights Templar in the film is generally accurate, although the specific events shown in the film are fictionalized.
Overall, while the movie takes creative liberties and incorporates fictional elements, it does incorporate some historical facts and elements from the medieval period, particularly in relation to jousting, tournaments, and the lives of knights.