Groenestein is part of the adjacent Sandenburg estate. The gate, which you can see clearly from the road, is the only part that remains of the original castle, built between 1477 and 1414.
Groenestein Castle
Langbroekerdijk 16
3947 BH
Langbroek
Contact details
E: cwbraaksma@gmail.com
W: http://www.kasteleninutrecht.eu/Groenestein.htm