The only daughter of an aged Chinese warrior, Fa Mulan is a lovely, young maiden who longs only to honor her family.  It seems; however, that she is destined to shame them instead when she foils their plans at finding her a husband.  When her aging father is called to war, Mulan is outraged, as she feels her father is too old and unable to fight.  So she secretly disguises herself as a man and takes his place.  Guided by her guardian dragon, Mushu, and her lucky little cricket, Cri-Kee, Mulan fights alongside her new army companions as they battle the powerful Huns.  In the end, she finds herself a heroine. 

Although Mulan is a remarkable woman, I'm unsure why Disney has labeled her as a princess.  As far as I know, her father was not royalty, and she marries Li Shang in Mulan II, but he was only a general in the Chinese army.  Unless it's because the Emperor honored her with the Chinese crest, I'm not sure.  If you know why she is classified as a princess, please write me.