In 1842, Prince Georg Wilhelm Schaumburg-Lippe purchased the estate for 2,500,000 gold coins for his second son, Wilhelm Karl August, thus establishing the Náchod branch of the family. Prince Wilhelm and his wife, Princess Bathildis, began living in the castle in the 1860s. The owner of the castle was aware of the value of the Náchod Castle, which is probably why he did not make any major alterations to it. He had the castle archives and library reorganized and opened the castle interiors to the public during the summer months. He was also successful in managing the estate. The Náchod region excelled in sheep breeding and the irrigation system in Ratibořice. After Wilhelm's death, his second son Frederick took over the management of the estate. The last owner of the castle was married twice. At the end of the 19th century, he married the daughter of the Danish king, Princess Louise Caroline. After her death, he married Princess Antoinette Anna of Anhalt, with whom he lived on the Náchod estate until the end of World War II. On June 21, 1945, all the property of the Schaumburg-Lippe princely family was confiscated and transferred to state administration.