The Battle of Courtrai saw Johann von Thielmann's Kingdom of Saxony troops and a few Prussians encounter an Imperial French force under Nicolas Joseph Maison near Kortrijk (Courtrai), a city south-west of Ghent in what is now Belgium. Thielmann attacked only to find himself facing the bulk of Maison's I Corps. The action ended in a rout of the Saxons, most of whom were under fire for the first time.

Nicolas Joseph Maison, 1st Marquis of Maison was a French military officer who served in the French Revolutionary Wars, the Napoleonic Wars, and as commander of the Morea expedition during the Greek War of Independence. He was made a Marshal of France in 1829 and served as Minister of War from 1835 to 1836.