Because who doesn't want to be called Lioness?? (in the Knightly sense).

10 points to whoever guesses who this is (prior to reading on-ward)! This is Alanna from Tamora Pierce's books Song of the Lioness- which were the best things ever when i was younger (and lets not lie, i still want to be this chick). She disguised herself as a boy because she didn't want to be a lady and wanted to be a knight instead, so she can kick ass and have awesome adventures (=what i want my life to be). And she has magic powers.. and a talking cat... i think I'm sensing a theme here...