Schloss Schlagenthin, Manor house in Jerichow, Germany

Schloss Schlagenthin is a manor house located near Jerichow featuring stone walls, ornate windows, and traditional German architectural details. The building displays elements from multiple construction periods spanning from the 18th century onward, reflecting the evolving needs and tastes of its successive owners.

Schloss Schlagenthin was built as the administrative seat of the von Tresckow estate, held by the family since the 16th century and originally over 2,000 hectares. In 1767 it passed to Prince August Ferdinand of Prussia, and around 1843 Count Harry von Arnim-Nassenheide bought it and rebuilt it, giving it its present form. His son Henning August inherited it; his wife Elizabeth von Arnim wrote several works at the castle. After 1945 it housed an agricultural cooperative and later a children's holiday home, and around 2010 it was renovated for about one million euros.

The estate's name is tied to the Arnim family: Count Henning August von Arnim-Schlagenthin inherited it and in 1889 married the English writer Elizabeth Beauchamp, who became Elizabeth von Arnim. She lived at Schlagenthin and drew on its castle garden for her 1898 book Elizabeth and her German Garden, which went through eight editions.

The manor house has always been privately owned and was never open to the public as a building or museum, so there is no visiting arrangement to plan around. It stands in the Schlagenthin district of Jerichow, and the former estate railway line from Genthin to Milow once ran directly past it, with a stop and a freight siding for farm produce.

The manor was never publicly accessible and remained in private ownership throughout its history, so little is documented about its room layout. Originally it had a garden hall, a ballroom or concert hall, and a banqueting hall; these main rooms still exist, though lightweight partitions added in 1970, 1991 and 2010 divided the upper floors into smaller rooms. Former children's home staff said these partitions can be removed to restore the original structure.