Dragons: Race to the Edge
In the episode Reign of Fireworms, the twins happen across a claim stone, which they call a "Namey Rock" due to the fact that it has their surname Thorston written on it. Upon inspection, it's found that Magmar Thorston claimed the island which the Riders now call Dragon's Edge in the name of the Thorston clan, and left the claim stone as permanent documentation of the claim. This leaves the twins to believe that they own the island and rule as monarchs over the other Riders.
Unlike the twins, Magnar knew how to spell correctly.