Princess Kida (Atlantis)
Princess Kidagakash "Kida," the the heroine of Disney's Atlantis: The Lost Empire (2001), is a warrior princess highly skilled at combat. It's mentioned that several thousand years ago, Kida would have killed outsiders on sight. But by the time Milo meets her, Kida has become so starved of Atlantis's history that she's willing to let in outsiders with the hope that they could help her rediscover her people's past.
She is the 9th princess in my ongoing Chronological Disney Princesses collection.