The former Schloss Hain in Düsseldorf-Unterrath was established under the name of Kartause Maria Hain (Maria Hain Charterhouse) as a Carthusian monastery in 1869, where despite the threats of the Kulturkampf in the 1880s and of World War II, it survived until 1964, when the site was required for the expansion of Düsseldorf Airport and the monks were forced to leave.