Princess Knight is released in Japan as Ribon no Kishi. It is a Japanese manga series written and illustrated by Osamu Tezuka. This manga follows the adventures of Princess Sapphire, a girl who pretends to be a male prince to prevent the criminal Duke Duralumin from inheriting the throne of the reign of Silverland.

• Published in 1953.
• Originated in Japan.
• Popular comic character.