Philip II Augustus undertook a massive French expansion in the 13th century, but most of these acquisitions were lost both by the royal system of "apanage" (the giving of regions to members of the royal family to be administered) and through losses in the Hundred Years' War.
Philippe II võttis 13. sajandil ette suure Prantsuse laiendamise, kuid enamus nendest ülevõtmistest kaotati nii kuningliku "apanaaži" süsteemiga (piirkondade andmine kuningliku perekonna liikmetele hallata) kui ka kaotustega Saja-aastases sõjas.