Rangherka (Rangheri House), also called Vrà ¡ovický zámeÃÂek (Vrà ¡ovice Castle) is a former silk factory, today Neo-Renaissance representative building from the 19th century, which stands in Vrà ¡ovice in Prague 10, Czech Republic. The building is named after its first owner Giuseppe Rangheri, a silk maker. Today, the building is a state-protected cultural monument.