Boniface II, Marquess of Montferrat King of Thessalonica (1202–1253) Parents Berta di Clavesana William VI, Marquess of Montferrat Children William VII, Marquess of Montferrat Adelaide of Montferrat Siblings Alix of Montferrat Beatrice of Montferrat Oddone di Monferrato Dauphine de Saint-Bonnet Partners Margaret of Savoy