The Minecraft hub basically being earth, well, actually being earth. With all the geography and history. No one knows Grians last name or where he's from. But when a dangerous task given to them by the listeners (asshats) sends them to the very middle of the Bermuda Triangle, where under the ocean, there is a ton of cities, and Grian knowing exactly where to go and how to get there. He could be the prince and that being why he built his base in the ocean in Season 6.