REIS in Niederstetten

There is a story in Bruno Stern's memoir, " Meine Jugenderinnerungen"
that Frau Voegele REIS, geb. LEHMANN, my 4x great-grandmother, died
of shock on 5 March 1848, on seeing the "Schlosskanzlei" in flames.

I've not been able to determine whether this was in fact simply the
office of the local ruler's agent or whether it was part of a local
castle, and if so, what the castle was called.

I wonder whether anyone can help me on the question?

Eva Lawrence, St Alban, UK eva.lawrence@idnet.com