: A medieval hilltop fortress that hosted the famous Marburg Colloquy in 1529 between Martin Luther and Ulrich Zwingli.
: It specializes in high-level academic works, particularly in philosophy, political science, and the history of ideas. Blaues Schloss
: Built in three phases (1676, 1711–18, and 1756–58) by the Barons (later Counts) of Seckendorff-Aberdar. The family served as high-ranking officials to the margraves. : A medieval hilltop fortress that hosted the
While not formally named "Blaues Schloss," the (Landgrafenschloss) is the most significant castle in the city where the Blaues Schloss publishing house is located. particularly in philosophy