Gringott's Dragon

"Nevertheless, as they climbed higher and higher, London unfurling below them like a gray-and-green map, Harry's overwhelming feeling was of gratitude for an escape that had seemed impossible. Crouching low over the beast's neck, he clung tight to the metallic scales, and the cool breeze was soothing on his burned and blistered skin, the dragon's wings beating the air like the sails of a windmill."

- Harry Potter, Ronald Weasley, and Hermione Granger escape on this dragon

This dragon guarded the Lestrange Vault of Gringotts Wizarding Bank during the 1998 Break-In of Gringotts Wizarding Bank. After the goblin Griphook abandoned them, Harry Potter, Ronald Weasley, and Hermione Granger took this dragon of an unknown breed. They finally jumped off by an unidentified lake, and the dragon ran off. It is unknown if Gringotts ever got this dragon back or not.

Appearances

 * Harry Potter and the Deathly Hallows
 * Harry Potter and the Deathly Hallows Part II (possibly)