Rittergut Altenrode, Medieval estate in Schladen-Werla, Germany.

Rittergut Altenrode is an estate in Schladen-Werla surrounded by a sandstone wall roughly 600 meters long that encloses the courtyard and garden areas. The property extends across farmland and forest covering about 205 hectares total.

Altenrode emerged from Carolingian-era clearings made from Gielde in the Oderwald. Through the Middle Ages Kloster Heiningen gradually acquired the settlement, and by 1321 the whole village lay on monastery land and served as its Vorwerk. In 1545 Hessian troops plundered the place; in 1810 the Westphalian government sold Kloster Heiningen and Altenrode for 520,000 francs to Johann Samuel Markwort, who resold Altenrode to the tenant Bothe for 65,076 francs.

The chapel in the 1756 Kapellenhaus was legally excluded from the 1810 sale of the monastery and estate and was assigned to the Catholic parish of Heiningen. The former churchyard inside the wall ring was closed in 1817; in the 19th century the Kleine Park garden was laid out there, with a grotto on the inner side of the wall.

The estate sits along a district road connecting Ohlendorf and Werlaburgdorf, making it relatively accessible by car. Visitors should plan ahead since this is a private property with restricted access.

The Kleine Park, laid out in the 19th century on the former churchyard inside the wall ring, holds a grotto built into the inner face of the sandstone wall, plus a curiosity known as a Neugierde. The churchyard itself was closed by permission of the Hanover government in 1817.