British Monarchy Records

King Sweyn Forkbeard

40 days

Shortest length of Reign


Mary, Queen of Scots

6 days old

Youngest monarch at time of accession


Alexander III of Scotland & Yolande of Dreux

143 days

Shortest length of marriage

lady jane grey_edited.jpg

Lady Jane Grey

9 days

although she was only proclaimed queen by the Lords of the Council on 10 July). The reign is disputed

Shortest (unofficial) length of reign


Isabella of Valois

(second wife of Richard II)

6 years 11 months and 25 days

youngest queen consort at the start of her reign

Henry, Duke of Cornwall, Son of Henry VIII & Katharine of Aragon

52 days

Lowest longevity of heir apparent


David II of Scotland

4 years of age

(to the 7 year old Joan of the Tower,)

Youngest monarch at time of marriage


Queen Victoria

1.52 metres (4 foot 9 inches)

Shortest (height) of monarch


Edward V


(most likely murdered along with his brother Richard)

The youngest Monarch to die


William II;  Edward V; Edward VI;

& Elizabeth I

all lived & died unmarried

Edward VIII never married while he was king, but married after his abdication

Monarchs that never married

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