- LASTEST NEWS
The €500,000 contribution for restoration of the dome brings the final opening of the 17th-century monument one step closer.
Other news
New acquisition: Boerhaavelaan 6 in Leiden
November 4, 2025
Start of garden restoration at Trompenburgh Estate
September 30, 2025
Building the future of Old Wassenaar Castle
July 29, 2025
Wood research Slangenburg Castle
April 17, 2025
Opening of the Ruins of Brederode
April 1, 2025
Trompenburgh country estate temporarily open
March 11, 2025