Schloss Niederaichbach, Castle in Niederaichbach, Germany.

Schloss Niederaichbach is a castle in Bavaria with two residential wings, a corner tower, and cream-colored facades that display typical Bavarian architecture. The grounds include several courtyards, service buildings, and stables arranged in a rectangular layout with an integrated gatehouse.

Niederaichbach was raised to a Hofmark in 1444, and in 1507 Siegmund von Königsfeld secured the Hofmark rights. The Königsfeld line, granted the hereditary imperial count title in 1686, died out in 1737; the widow married a Count von Closen. From 1762 the counts of Freyen-Seyboltstorff held the estate until their patrimonial court was abolished by the law of 4 June 1848. In 1925 Prince Ludwig Philipp von Thurn und Taxis acquired the castle, which passed through his daughter Iniga to the princes of Urach.

The castle's name probably derives from the Aichpeckhen noble family, resident here until 1334. Niederaichbach was raised to a Hofmark in 1444, and in 1507 Siegmund von Königsfeld finally received the Hofmark rights. The castle later served as the filming location for the fictional Kloster Kaltenthal in the TV series Um Himmels Willen.

The complex is arranged as a four-sided courtyard: the two-winged residential block with its corner tower, the 19th-century coach house and service buildings, and the economic yard to the west. The preserved park and the approach avenue lie to the north. The buildings are private property, so visitors view them from the outside along the surrounding lanes.

The castle served as the filming location for the fictional Kloster Kaltenthal in the television series Um Himmels Willen. The site is also recorded as an archaeological monument, with traces of earlier buildings and older construction phases preserved underground.