King Egglebert is ruler of Egglebert Having the misfortune of arriving the very last day of the excuse portion of king selection, he didn’t know his excuse was already taken. So he was then selected to be King Egglebert of Egglebert.
Being King of a Gnomish realm is not a desired position. The responsibility takes its tole on gnomes, and they only last maybe 50 years before being forced to abdicate to avoid death. That is 50 years of not being able to do what you want, and they aren’t allowed to abdicate until they are deaths door.
The last king of the old kingdom was actually the only gnome in memory to actually die in office. A hobgoblin axe split his crown before he could give it up.