other Philippe de France

http://fmg.ac/Projects/MedLands/CAPET.htm#LouisVIIdied1180A

LOUIS de France, son of LOUIS VI King of France & his wife Adélaïde de Maurienne [Savoie] (1120-Paris, Palais Royal de la Cité 18/19 Sep 1180, bur Abbaye cistercienne de Notre-Dame-de-Barbeaux near Fontainebleau[426], transferred 1817 to l'église de l'Abbaye royale de Saint-Denis). ...

King Louis VII had [one possible illegitimate son by Mistress (1)]:

• 8. [PHILIPPE de France (-1161). Kerrebrouck names him as illegitimate son of King Louis but does not cite the primary source on which this is based[503]. Doyen of Saint-Martin at Tours. Père Anselme says that “on attribue au roy Louis le Jeune un fils naturel nommé Philippe, doyen de S. Martin de Tours, mort avant son père”, adding that “on prétend que c’est à lui à qui saint Bernard adresse sa lettre 151”[504]. Anselme provides no information about the identity of “on” and his phrasing suggests little confidence in the accuracy of the attribution.]