I am in absolute awe of your dedication, and the pic spam.

"Quartier" and a "something[stube]", aka "something-room." Perhaps our German speaker can help us out.

At first I thought maybe "Gerichtsstube", but then I decided "Gesindestube" is more likely.

"Stube" is an old fashioned term for chamber. "Gesinde" are servants. (Not to be confused with "Gesindel", which means rabble.)

So: "court chamber" or "servants' quarters", respectively.