Robert I, Count of Artois French noble (1216–1250) Parents Blanche of Castile Louis VIII of France Children Blanche of Artois Robert II, Count of Artois Siblings John Tristan, Count of Anjou and Maine Alphonse, Count of Poitiers Louis IX of France Isabelle of France Charles I of Naples Philip of France Philippe-Dagobert of France Philip of France Partners Matilda of Brabant, Countess of Artois
