Coordinates: 49°15′42″N 9°53′34″E / 49.26173°N 9.8928°E Ludwigsruhe is a hamlet in Hohenlohe. It is a suburb of the town of Langenburg in the district of Schwäbisch Hall, located in Baden-Württemberg, Germany. Until 11 August 1761, the place was called Lindenbronn. Prince Louis of Hohenlohe-Langenburg then changed the name of the hamlet to match the name of the lustschloss he had built there.
The hamlet of Lindenbronn was acquired by the Hohenlohe-Langenburg family in 1556. In the years that followed, they created a 28-acre park to hunt. In 1750, the park was surrounded by a wall.
In 1736, Prince Louis began building a summer residence in the park. It was designed by Leopoldo Retti, and Retti's original design was based on early 18th century Parisian city architecture. Prince Louis only built a simplified version of the original design.
On the ground floor were some utility rooms, a garden room and a dining room. The first floor contained a large hall and three residential apartments. This is typical for a lustschloss, a type of château which was also invented in France. In the façade of the Ludwigsruhe château, we see a mix of architecture from the court at Ansbach, windows arranged like the palace in Ludwigsburg and "eared" window frames of unknown origin. Construction of the château was completed in 1743.