A possible and probable course to take would that she was assigned as a squire to a Captain or Veteran of the Royal Guard. Thus, while a ward of the Royal Family, she is also made the responsibility of the aforementioned Captain (or previous captain)/Veteran to train, educate and discipline, effectively raising her. This isn't altogether too uncommon of a situation in these sorts of quasi-Medieval-Renaissance settings.

More simply put: She was not officially adopted by the King, but taken under his custody before giving her an official House and Title by having her become a squire to a person of note in a favorable position for her. Essentially, she'd be the adopted person of her guardian/master. This would be similar to (but not exactly the same as) how in some legends, King Arthur is an "adopted" son of Sir Ector, even as King Uther was still alive.

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[quote=Skyswimsky]
Talking about Swords, I can still change my Jian, right? Right.
[/quote]

Oh, if I might make a suggestion: You might want to replace the Foil with something meant for actual battle, like a Smallsword or a Rapier. The Jian could be replaced with a [url=http://en.wikipedia.org/wiki/Basket-hilted_sword]Broadsword/Basket-hilted Sword[/url] as the fighting style would be similar to a Jian, but it'd keep with a Western Renaissance sort of theme.