Nový zámek, Baroque château in Lnáře, Czech Republic.

Nový zámek is a Baroque château set within a landscape of ponds and a formal French garden planted with ornamental trees. The building contains decorated rooms with frescoes showing mythological scenes, a chapel, and a grand hall designed for ceremonies and gatherings.

Aleš Ferdinand Vratislav z Mitrovic began a new Baroque residence beside the old fortress around 1670, but died before it was finished. In 1675 his daughters sold the estate to Humprecht Jan Černín for 180,000 florins, and Tomáš Zachariáš Černín completed the building in 1683–1686 to plans by G. B. Maderna. Later owners included the Künigl, Swéerts-Sporck, Thun-Hohenstein and Lilgenau families.

The château's name Lnáře derives from the lords of Lnář, whose coat of arms bore a golden key on blue; the German name Schlüsselburg means "key castle". The interior holds ceiling frescoes of mythological scenes by Giacomo Tencalla in the festive hall, and a gallery displays the legacy of the noble families who resided here.

The château opened to the public in 1999 and is reached by a stone bridge lined with six statues of saints from the first half of the 18th century. The four-winged building surrounds a rectangular courtyard with a Neptune fountain from the late 17th century; the garden laid out in the first half of the 18th century lies next to it.

In the early 1990s, thousands of privatisation projects were approved inside the château, and Czech and Slovak government members met here to negotiate the division of Czechoslovakia. General Andrey Vlasov also capitulated at the château at the end of World War II.