Chieftain(s) in the Franchise
Member(s) in the Franchise:
First Franchise Appearance
Last Franchise Appearance
School of Dragons
They were warriors who came from all corners of the world to practice hybrid vigor - cross-breeding from different groups to produce stronger offspring.
— Eret, Son of Eret to Scribbler in a Terror Mail
Mongrel Tribe is introduced in the game, . Because the Dreamworks Dragons: Dawn of New Riders character School of Dragons Nikora Stormheart is stated to be a Mongrel Tribe member as well, by default her forces and soldiers are also part of the Mongrel Tribe, though School of Dragons does not yet implicitly state it.
The Mongrel Tribe was formed on the premise of creating better human warriors. The best warriors from all over the world gathered together to form the Tribe and produce superior sons and daughters. The children were trained in combat and appear to also be intellectually gifted as well.
Franchise Tribe Members
Eret, Son of Eret relates that the Mongrel Tribe was led by King Stormheart, until his death at the hands of Drago Bludvist.