>>64443080
>>64443096
There just aren't that many small castles. But there are some hidden gems like pic rel - Burg Wildenstein, which is a spur castle that has practically been unchanged since 1554. The only way in is via a single bridge.
>>64444208
It won't. But a castle of this size (as in the OP) isn't designed to keep large armies at bay. It's more so a defense against raiders.