Yes. The city "garrison" isn't actually a garrison at all.
> If there is no one in the castle proper but there is a noble
> in a tower in the castle. Will the noble in the tower be
> the owner of the castle and
> A: get the castles income at the end of the turn ?
> B: defend the castle if attacked ?
No, no.
-- Oleg, not the Anwer Guy