A Stronghold is a kind of castle; the name already says what's it suggested to be for : A place which is strongly secured for people who often cannot defend themselves.
See game "Stronghold". <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" />
When you find a big kettle of crazy, it's best not to stir it. --Dilbert cartoon
"Interplay.some zombiefied unlife thing going on there" - skavenhorde at RPGWatch