The history of Kasteel de Wittenburg commences in the spring of 1899, as jonkheer Helenus Marinus Speelman acquired the property on which he built a summer estate. The castle was designed by the infamous architect J.J. van Nieukerken. He was known for buildings such as the Academic Hospital Groningen. Jonkheer Speelman shared a particular vision: the construction was ceased multiple times and parts of the castle was removed and replaced. In 1901 construction was finally finished, and Kasteel de Wittenburg was born. The jonkheer himself could spitefully not enjoy much of his creation, as he unfortunately died in 1910.
End of 1963 Kasteel de Wittenburg opened its doors for the public. This monumental building has fairly remained unchanged. The historical and calm atmosphere from the the past have been fused with modern provisions. Meanwhile the castle now features an array of function rooms. All serving the purpose of an international convention center. Kasteel de Wittenburg is known for its unique location, and host of several own event and concerts. Besides business occasions, the castle’s function rooms are booked for jubilees, reunions, weddings and goodbye events.