. . "Schloss Uster"@en . "Uster Castle (Swiss German: Schloss Uster also referred to Burg Uster) is a hill castle which was built probably around 1200 AD by the House of Rapperswil in the Swiss municipality of Uster in the Canton of Z\u00FCrich. Since 1995 it houses a boarding school."@en . . . "~ 1200" .