Groenestein is part of the adjacent Sandenburg estate. The striking gate, clearly visible from the road, is the only remnant of the original castle, built between 1377 and 1414. Though the castle itself is gone, the gate still stands as a reminder of this historic site.
                                        Groenestein Castle
                                        Langbroekerdijk 16
                                        3947 BH
                                        Langbroek
                                    
                                        Contact details
                                                                                                                            
                                                E: cwbraaksma@gmail.com
                                            
                                                                                                                            
                                                W: http://www.kasteleninutrecht.eu/Groenestein.htm
                                            
                                        
                                    
 
                 
                 
                                             
                                                                                                                                                                