List of Percy Jackson and the Olympians characters
Bianca di Angelo: A daughter of Hades, and  later, a Huntress of Artemis. After Artemis is kidnapped in The Titan's Curse, she undertakes the quest to rescue her alongside Percy Jackson, Grover, Thalia, and Zoë. She sacrifices herself to destroy a defunct prototype of Talos because she stole an item from the Junkyard of the Gods. The item she saved was a  statue of Hades. Nico di Angelo blames Percy for her death and harbors hard feelings for him for a while afterwards. Nico also throws away the Hades statue that Bianca saved when she died. Later, Nico realizes that Hades is their father and that Maria di Angelo was their mother.