Which Greek hero killed the fire-breathing Chimera?

Bellerophon was the Greek hero credited with killing the fire-breathing Chimera.

The Chimera was a monstrous hybrid associated with Lycia. Ancient descriptions give it a lion’s forepart, a goat’s middle section, and a serpent or dragon for a tail; its goat head breathed fire. It ravaged the countryside, making it a deadly threat to people and livestock.

King Iobates of Lycia sent Bellerophon to destroy the creature, expecting the mission to kill him. Bellerophon first obtained the winged horse Pegasus, traditionally born from the blood of Medusa. Riding Pegasus, he attacked from the air, keeping out of the Chimera’s reach while striking it with weapons.

Different ancient authors describe the final method differently. One famous version says Bellerophon forced a lump of lead into the monster’s fiery mouth; the heat melted the lead, which suffocated or fatally burned it. Perseus is a common mix-up because he also killed Medusa, while Heracles performed the Twelve Labors.