Possible areas of Brennenburg Castle

[PutraenusAlivius]

I thought Brennenburg doesn't exist.
Well... Time for me to read the ATDD wiki.

Actually, you are correct. Brennenburg does NOT exist, however, it's locations are real. Although you won't find Prussia in google. This is because the name of those locations are changed.

While "Brennenburg" may not exist, "Brunnenburg" does. Castle "Brunnenburg" is owned by not only the de Rachewitz family, but the guesthouse is home to students, studying all they can.

Is that in Prussia?