Lords of Ayseau

The Lords of Ayseau(x) (sometimes d'Aysia) belonged to an ancient feudal nobility of the Duchy of Brabant.

The title was given to the legitimised son of the Duke of Brabant, and belonged for generations to their descendants.

In 1454 Philipp, Duke of Brabant proclaimed that Arnould Brant would have a "rente héreditaire sur la Terre de Grobbendoncq."

[2] The dominium was later elevated to a Marquisate in 1626 by King Philip IV of Spain for Rasse of Gavre, 1st Marquess of Ayseaux.

John III, Duke of Brabant; (Elisabetha Maria of Huldenberg) Charles of Gavre, Count of Beaurieu;married to Honorine, Lady of Ayseau and l'Escatiere.