| Ruler | Kingdom | Era |
|---|---|---|
| Mr. Bouldergrunt | 48 | |
| Mr. Bouldergrunt | 48 | |
| Mr. Grun | 47 | |
| Sir Grundar | Death or Glory | 14 |
| Mr. Grundian | 48 | |
| Ms. Grundles | Alpha N Omega | 48 |
| Mr. Grunn | 29 | |
| Mr. Grunt | 34 | |
| Mr. Grunt | 48 | |
| Mr. Grunthor | 38 | |
| Mr. Grunthor | 48 | |
| Mr. Grunthor | The Inquisitors | 48 |
| Mr. Grunthor | Kell Hounds | 48 |
| Mr. Grunthor | 48 | |
| Mr. Rorgrun Deepdigger | Blood of Dragons | 47 |
| Mr. Rorgrun Deepdigger | 48 | |
| Ms. Theagrundskola | Childrens Playground | 48 |