It was decorated by Arsenio Mascagni around 1615; the Italian painted the walls and ceilings completely with street scenes and 12 very plastic, golden Caesars. The plastic mode of the painting simulates a peristilium or "pillar court". In a similar fashion, Mascagni painted the octagonal "Musikzimmer" or simply "Octagon", a music room which borders the Fürstenzimmer.