The house of van der Noot is divided in 7 families and branches, the most known is the branch of the Barons of Carloo, Baron of Schoonhoven and Marquess of Assche.[3] The title Count van der Noot was created for Charles Bonventura, 1st Count van der Noot, he was the third son of Roger-Wauthier van der Noot, 1st Baron of Carloo (born 27 February 1644), Mayor of Brussels. His uncle was Philips Erard van der Noot, bishop of Ghent. He was the author of all counts van der Noot, who have lived ever since. His son Jean Antoine made a powerful alliance with Marie Josepha Taye, and his male heirs inherited the title of Marquess of Assche. the Since then the title passed from generation to generation in the House of van der Noot. Today all members of the family bear the title count or countess van der Noot, the head of the family is the current Marquess of Assche.
The House had two Bishops of Ghent ,the last Princess Abbess of Nivelles (1776-1794) Marie Felicite, and the first Apostolic Vicar of Luxembourg (1833-1842),Johann Theodor (1769-1843).
Henri I Carlo Eduard Adrien Théodore (1902–1952). Count van de Noot, 10th Marquess of Assche in 1928, married Collette Allard, daughter of Baron Josse Allard.[6][7]
Wauthier Antoine Constantin Eduard van der Noot, 11th Marquess of Assche, married Barbara Devis.
Henri II Christian Antoine Alexandre, 12th Marquess of Assche in 1994.[6]