| 2025-02-02 | Catherine the Great, e.g.: Abbr. |
| 2020-01-09 | Lure |
| 2016-02-26 | Edward VII or VIII, in India: Abbr. |
| 2014-04-17 | H.R.E. part: Abbr. |
| 2011-10-02 | Hirohito's title: Abbr. |
| 2011-04-30 | Titus, e.g.: Abbr. |
| 2010-11-20 | Charlemagne, e.g.: Abbr. |
| 2009-10-01 | Titus or Tiberius: Abbr. |
| 2009-06-21 | Nero, e.g.: Abbr. |
| 2009-04-23 | Great Brit., e.g., in years past |
| 2009-03-22 | Hirohito's title: Abbr. |
| 2008-02-17 | The "E" in H.R.E.: Abbr. |
| 2007-06-12 | Akihito's title: Abbr. |
| 2007-06-10 | Ottoman, e.g.: Abbr. |
| 2004-05-27 | Great Brit., once |
| 2002-10-27 | Caesar, e.g.: Abbr. |
| 2000-12-15 | Charlemagne, e.g.: Abbr. |
| 2000-12-07 | Napoleon or Nero: Abbr. |
| 2000-03-12 | Titus, e.g.: Abbr. |
| 1999-11-28 | Nero's title: Abbr. |
| 1999-06-25 | Little Caesar? |
| 1997-11-21 | Akihito, e.g.: Abbr. |
| 1997-11-13 | Incas' realm, e.g.: Abbr. |
| 1997-07-09 | Nero, e.g.: Abbr. |
| 1995-07-30 | Sovereign ruler: Abbr. |
| 1995-06-21 | Haile Selassie, e.g.: Abbr. |
| 1994-05-09 | Holy Roman, e.g.: Abbr. |
| 1994-05-08 | Supreme ruler: Abbr. |
| 1994-03-31 | Forbidden City occupant: Abbr. |