The castle Holter Burg of the Holten family on the site of the current palace was destroyed in 1147.

[2] When the Leden family [de], who also had a mansion in Osnabrück, used it as a residence, it was called Schloss Ledenburg.

The interior of the west wing has an imperial staircase ("dreiläufiges Treppenhaus"), an early example in northern Germany of the then new design, which followed on from the spiral stairs of the Weserrenaissance.

The building houses a fireplace decorated with stone figures, and several ceramic stoves.

Thanks to research by the French musicologist François-Pierre Goy, the collection was discovered and researched by musicologists, resulting in new editions of music that were assumed to have been lost, especially Telemann's Twelve Fantasias for Viola da Gamba solo, but also three sonatas and a trios by Carl Friedrich Abel.