Prince Yog Grunkwitz was the son of Bee-Baw, the older brother of the King Zøg, the ex-brother-in-law of the Queen Dagmar and the Queen Oona, and the paternal uncle of the Princess Bean and the King Derek.
Yog was originally the crown prince and heir apparent to the throne of Dreamland; but after Yog was mysteriously poisoned by an unknown assassin, the title was passed onto his younger brother. It is possible that Dagmar poisoned him.
- Bean's full name is Princess Tiabeanie Mariabeanie de la Rochambeau Grunkwitz, not "Drunkowitz" - she just called herself that while drunk. Grunkwitz is Zøg's family name from the House of Grunkwitz (like House of Windsor or House of Schleswig-Holstein-Sonderburg-Glücksburg) - Twitter post of Josh Weinstein's verified account