Re: PRIVATE.
Fen is native Fillorian and a knife maker's daughter.
Margo is, like you said, one of the greatest centurion guards you ever had, also better known as High King Margo the Destroyer...
Just a handful of others who might also be upset about the whole having to destroy Fillory thing....
Except Julia. She's from a few years back. We haven't told her anything about her future on account that she's currently technically shadeless? Although typing that I now realize that means you should still probably be mildly concerned.