| 2024-03-28 | Former title for 16-Across: Abbr. |
| 2021-10-31 | Inits. at Westminster |
| 2019-11-03 | Monarch's inits. |
| 2018-10-09 | Regal initialism |
| 2015-11-22 | Prince's inits. |
| 2014-06-17 | Letters for a prince |
| 2014-05-13 | Title for a princess: Abbr. |
| 2012-12-28 | Letters for a princess |
| 2012-09-04 | Princely inits. |
| 2011-12-20 | Letters for a prince or princess |
| 2011-06-05 | Princely abbr. |
| 2010-12-06 | Prince's title: Abbr. |
| 2010-10-03 | Regal letters |
| 2010-08-29 | Danielle Steel novel about a European princess |
| 2010-07-17 | Letters for a duke |
| 2010-05-31 | Title for a prince or princess: Abbr. |
| 2009-12-23 | Buckingham Palace letters |
| 2009-08-23 | Regal inits. |
| 2008-06-04 | Initials for Camilla |
| 2007-02-20 | Regal inits. |
| 2004-09-05 | Buckingham Palace inits. |
| 2004-08-20 | Letters of royalty |
| 2003-07-29 | Princely initials |
| 2001-12-30 | Letters at Buckingham Palace |
| 2001-04-19 | Regal letters |
| 2001-02-25 | Letters for a prince |
| 1999-02-28 | Queen Eliz., e.g. |
| 1998-09-30 | Initials for a prince |
| 1996-04-29 | Royal initials |