How many Black Knights (Black Wings Generals) are there really?

So, the Black Mage turned Aran into a lady while he was trapped in ice. Luckily for the troops, Aran is not phased by her sudden gender change. Another lame plan foiled, Black Mage.

Brighton doesn't seem to mind Aran's gender change either.

 Spoiler

The Dark Lord does not look pleased.
Ofc, that may be because of Lady Syl, but who knows.
Btw, I'm calling the Dark Lord Voldemort from now on, I mean, really.