The Manuscrit du Roi or Chansonnier du Roi ("King's Manuscript" or "King's Songbook" in English) is a prominent songbook compiled towards the middle of the thirteenth century, probably between 1255 and 1260 and a major testimony of European medieval music. It is currently French manuscript no.844 of the Bibliothèque nationale de France. It is known by various sigla, depending on which of its contents are the focus of study: it is troubadour manuscript W, trouvère manuscript M, and motet manuscript R. It was first published by French musicologist Pierre Aubry in 1907 (Estampies et danses royales: Les plus anciens textes de musique instrumentale au Moyen Âge).