The Landgravial Butzbach Castle was originally a town castle belonging to the Lords of Falkenstein. However, recent excavations in the castle grounds have revealed that a small, circular moated castle probably existed on the site as early as 1200.
The Falkenstein family expanded the property around 1390, then it became the seat of the Eppstein-Königstein family, the Archbishop of Mainz, and finally a castle castle of the Landgraves of Hesse. Around 1500, the Landgraves of Hesse built another castle. Landgrave Philipp of Hesse-Butzbach (1609-1643) rebuilt the castle, which had partially burned down in 1603, as a stately residence.
From 1818 onwards, it was converted into a barracks and used as such until the US military withdrew in 1991. Through this use, the Landgravial Palace retained its original structure as a "shell," but lost what defined its palace character: the tall towers, the dormer windows with their decorative gables, its colorful paint, and, of course, the entire once-magnificent interior.
In 1998-99, most of the barracks buildings on the palace grounds were demolished, and in 2002, the city administration finally moved into the south and east wings. In 2002, a small section of the former palace garden was recreated in its original symmetry as a historical window.
Every summer, the nationally renowned and very popular open-air cinema takes place in the palace courtyard.
(Source: tourismus.wetterau.de)