| Answer | Crossword Clue |
|---|---|
| CMS | Ruler units: Abbr. |
| SOV | Ruler: Abbr. |
| EMP | Ruler: Abbr. |
| EMP | Absolute ruler: Abbr. |
| EMP | Sovereign ruler: Abbr. |
| SOV | Supreme ruler: Abbr. |
| EMP | Supreme ruler: Abbr. |
| CMS | Ruler divisions: Abbr. |
| EMPS | Royal ruler: Abbr. |
| EMP | Powerful ruler: abbr. |
| MMS | Ruler divisions: Abbr. |
| HRE | Charlemagne was its first ruler: Abbr. |
| HRE | Charlemagne was its first ruler (Abbr.) |
| HRE | Francis II was its last ruler: Abbr. |
