|This character exists primarily or exclusively within the Pre-Super Genesis Wave continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Because the section of Mobius his kingdom was in was not of interest to Dr. Eggman, King Leonus was unwilling to join the Kingdom of Knothole's coalition against the Eggman Empire. Due to Patch secretly poisoning King Max, the negotiations were cut short and he was brought back to Knothole Village for treatment. (StH: #155)
- While not seen, it is assumed King Leonus is a Mobian as Mobian settlements throughout Mobius are almost always kingdoms, while Overlanders have cities.