House of Châtillon
House of De Cock
Lords of Waardenburg, Neerijnen, Opijnen and IJzendoorn
Dutch branchHouse of Montchâlons
Lords of Montchâlons, Bouconville and La BôveHouse of Blois-Châtillon
Counts of Blois, Saint-Pol and DunoisHouse of Châtillon-Porcien
Counts of Porcien
Lords of La Ferté-en-Ponthieu