Philippe de Nanteuil was a French knight and trouvère.
He inherited the seigneurie of Nanteuil-le-Haudouin from his father, also Philippe de Nanteuil.
He was a vassal of Thibaut de Champagne, who was king of Navarre and also a trouvère, and became his friend.
[1]: 48 In 1239 Gautier de Brienne, the count of Jaffa, along with De Nanteuil and many other French crusaders, was taken prisoner by the Ayyubids during the Barons' Crusade,[2] and imprisoned in Cairo.
There De Nanteuil wrote a crusade song, En chantant veil mon duel faire,[3]: 221 critical of the military orders.