| VICTORIA | In 2015 Queen Elizabeth II surpassed this ruler as Great Britain's longest reigning monarch. |
| QUEENVICTORIA | The longest-reigning English monarch in history, before Elizabeth II surpassed her this week: 2 wds. |
| SABRINA | Latin name for Great Britain's longest river, the Severn (7) |
| SEVERN | Great Britain's longest river |
| QUEENELIZABETHII | Longest-reigning monarch in British history |
| LEOPOLDII | Belgium's longest-reigning monarch (44 years) |
| IAMMONARCHOFALLISURVEY | Undisputed ruler, as far as I can see - that is Alexander |
| RAINIER | ___III, European ruler as famous for marrying a Hollywood star as for modernising his principality (7) |
| WILHELMINA | Queen of the Netherlands from 1890 to 1948; the longest-reigning Dutch monarch (10) |
| MONARCH | There's no return in a month for this ruler (7) |
| PRINCESSBUBBLEGUM | We know her as PB, but did you know that this ruler's first name is Bonnibel? |
| MOUNTAINBIKING | I bin amount cooked by ruler as outdoor sport (8,6) |
| HIROHITO | Longest-reigning emperor of Japan (1926-89), known posthumously as Showa (8) |
| CHESS | Emmanuel Lasker was the longest reigning World Chess Champion of this game (5) |
| REAGENT | Chemist may use this ruler, boxing in area |
| CROWNED | Tooth has come in for some repair, like reigning monarch (7) |
| INFANTA | Formerly in Spain and Portugal, a daughter of the reigning monarch (7) |
| KINGCHARLES | The English monarchy was (temporarily) abolished after the execution of this ruler (4,7) |
| SULTAN | This ruler is the last to join the United Nations |
| SURREAL | Describe ruler as bizarre |