Dauphine de Saint-Bonnet -1287 (d. 1287) Parents Berta di Clavesana William VI, Marquess of Montferrat Children Sybille of Bâgé Siblings Alix of Montferrat Beatrice of Montferrat Oddone di Monferrato Boniface II, Marquess of Montferrat Partners Guy de Baugé