“ The cathedral of St Martin dates from the 13th century, with a tower of the 15th century. Jansen, bishop of Ypres and the founder of the Jansenist school, is buried in the cathedral. The Butchers' Hall is also of interest and dates from the 15th century. Although Ypres is unlikely to regain the importance it possessed when its "red-coated" contingent turned the day in the great battle of Courtrai (1302) , it has an important linen and lace trade and a great butter market. The Belgian cavalry training-school is established at Ypres. ”