Inside the mausoleum

Vaalsbroek is part of the hamlet Raren. It consists of a mill, a few houses, and farms and a castle.  Behind the castle is a garden. At the end of the garden, there is this mausoleum. Inside the mausoleum, the walls, as well as the ceiling, is dazzlingly painted white. I couldn't enter the place, it was closed by an iron gate. What caught my eye, was the ornamental bow on the back wall.