<P> The shortest - reigning monarch was Lady Jane Grey who ruled for 9 days from 6 July until 15 July 1553 ( although she was only proclaimed queen by the Lords of the Council on 10 July ) . Note : Jane 's reign is disputed . </P>
<P> The shortest - reigning monarch was Lady Jane Grey who ruled for 9 days from 6 July until 15 July 1553 ( although she was only proclaimed queen by the Lords of the Council on 10 July ) . Note : Jane 's reign is disputed . </P>
who is the shortest-reigning monarch in british history
who is the shortest-reigning monarch in british history
Lady Jane Grey
Lady Jane Grey