Prince of Hyrule

From Zelda Wiki.org

Very little is known about the Prince of Hyrule. He is only mentioned in the Adventure of Link, where it says that he was partly responsible for putting Princess Zelda in a coma. In honor of her, he announced that all females born into the Royal Family of Hyrule must bear the name "Zelda". Although he isn't actually seen in the game, artwork of him was shown in the manual.