Maria de la Tour-Tassis

Ex Wikipedia, Thurn und Taxis:

"By 1516, Francisco de Tassis (Taxis) had moved his family and postal business from Italy to Brussels, in the Duchy of Brabant, where they became instrumental to Habsburg rule, linking the rich Habsburg Netherlands to the Spanish court."

We have a record of the 1513 marriage in the Notre Dame du Sablon of Brussels of Johann to Marie Marguerite's mother. Marie is their youngest daughter. She later marries into the Brabant family of van den Berghe, minor nobility originally from Leuven. See also Wikipedia on that dynasty: https://nl.wikipedia.org/wiki/Van_den_Berghe_de_Limminghe.

In addition to those of the Van den Berghe family who took up religious positions in institutions outside Leuven, Daniel van den Berghe († 1554) was the first to make a career outside Leuven. He was a member of the Council of Flanders and his marriage to Marie de Tassis († 1601) brought with it funds and estates and launched the family into the higher classes of society, much later culminating in Charles van den Berghe de Limminghe, mayor of Brussels, being elevated to Count by Charles II of Spain. At the end of 1695, Count Charles van den Berghe de Limminghe bought a large plot in Brussels that had been cleared through bombardment. There he and his wife Anne-Isabelle Arrazola de Oñate built a prestigious mansion, The Hôtel de Limminghe, which today houses the Brussels-Capital Parliament. He was lord of Neufchapelle, of Piétrebais, of Grez, of Saint-Laurent and of Nodebais, and the family was permitted by Charles II of Spain to embellish their coat of arms with their possessions, making it grandiose.

The eldest son of Daniel and Marie Marguerite, Jean-Baptiste van den Berghe, continued the Brussels trend and became President of the Court of Brabant and married Anne Baert de Berentrode. They underscored their Leuven origins by adopting the fictional toponym "van Limminghe," and their tomb of the Berg-Baerts in the Brussels Sablon church bears the inscription "van den Berghe ex Liminghiis".