Where: Braunfels, Germany
Start of construction: 13th Century
End of construction: 18th Century
Most important renovation: 19th Century
Accessible: yes, interior with guide
Important fact:
Reconstructed after a major fire in 1679 and rebuilt around 1700. Current fairytale like exterior was created after an extensive renovation around 1880.
https://schloss-braunfels.de/en/spanisch-home/