The coutilier (also coutillier, coustillier) was a title of a low-ranking professional soldier in Medieval French armies.
A coutilier was a member of the immediate entourage of a French knight or a squire called lances fournies.
[2] The coutilier also had a place in the Burgundian army of Charles the Bold, being described in detail the military regulations of 1473.
[4] The name coutilier seems to derive from their being equipped with a long knife or short sword called a coustille.
A French coutilier of 1446 was equipped with a helmet, leg armour, a haubergeon, jack or brigandine, a dagger, sword and either a demilance or a voulge.