Map of 1180, can be used for name of city and fiefs, , don't look the suzerainties, as the large mod start after the continental seizure.
Some cities were in fact the lord's residence in the province, or a great vassal of the King. Looking near Burgundy, the name of "Donzy", its the fort hosting the "Baronnie de Donzy", several thousand of hectares as "manse"(personal rural holding of a lord), hundred of mounted sergeants ready to serve!
Near Bordeaux, the captal of Buch(first vassal of the English King in coastal Gascogne) have its residence localised: La Teste-de-Buch. Teste and Captal means Head in english
M: Margraviate_Marquisate(Marche in french, former military-oriented counties)