- LASTEST NEWS
Monumentenbezit assumed temporary management of Castle Oud Wassenaar at the beginning of this year. Much has happened since then.
Other news
Spring break tips
February 13, 2026
Green returns to the garden of Buitenplaats Trompenburgh
February 5, 2026
Volunteer vacancies Collection Care & Housekeeping Slangenburg Castle
January 30, 2026
Monumentenbezit celebrates its 10th anniversary
January 15, 2026
Subsidy from the Province of North Holland Trompenburgh Country Estate
December 11, 2025
New acquisition: Boerhaavelaan 6 in Leiden
November 4, 2025