Kim Quy

Kim Quy appears in Vietnamese legendary-historical narratives connected to ruling power. In the An Dương Vương tale Kim Quy grants one of his golden claws to the king to function as the trigger for a magical crossbow that ensures military success. In the Lê Lợi story, after the emperor's victory Kim Quy surfaces from the lake to retrieve the sacred sword on behalf of the Dragon King (Long Vương); the emperor returns the sword and Kim Quy disappears back into the lake (Hoàn Kiếm), sealing the divine transaction. These narrative appearances place Kim Quy within episodes where human rulership and aquatic divine authority intersect.

Sources consistently describe Kim Quy as a golden turtle (literally "Gold/Golden Turtle"). The tradition associates this figure with specific bodies of water—notably the lake in Hanoi now called Hoàn Kiếm (The Lake of the Returned Sword)—and with the historical presence (until recently) of the Hoàn Kiếm turtle population commemorated by the Turtle Tower. Beyond the label "golden turtle," the supplied sources do not provide additional morphological detail.

In the recorded legends Kim Quy bestows materially efficacious magical aid (in An Dương Vương the being gives a golden claw used as a trigger that allows a crossbow to kill 300 enemies in one shot) and acts as an authorized agent of another aquatic deity (in Lê Lợi Kim Quy appears to take the sacred sword back to the Dragon King). Kim Quy is able to emerge from and return to lakes, and in narrative scenes provides authoritative information to humans (for example warning An Dương Vương about the true identity of a companion) that affects human decisions and outcomes.