<Table> <Tr> <Th> Name </Th> <Th> Country </Th> <Th> Royal house / dynasty </Th> <Th> Reign began </Th> <Th> Reign ended </Th> <Th> Length </Th> <Th> Comments </Th> </Tr> <Tr> <Td> Prince Louis Antoine , Duke of Angoulême , `` King Louis XIX '' </Td> <Td> Kingdom of France </Td> <Td> Bourbon </Td> <Td> 2 August 1830 </Td> <Td> 2 August 1830 </Td> <Td> 20 minutes </Td> <Td> Succeeded with the abdication of his father , Charles X , only to himself abdicate in favour of his nephew , Henry V ( above ) . The question of whether Louis actually `` reigned '' is a philosophical one , as after his father signed the document of abdication , he contemplated his future for twenty minutes before himself signing . Many Legitimists did not recognise the abdications as valid , and recognised Charles X as king until his death in 1836 , before recognising Louis as king until his own death in 1844 . </Td> </Tr> </Table>
<Table> <Tr> <Th> Name </Th> <Th> Country </Th> <Th> Royal house / dynasty </Th> <Th> Reign began </Th> <Th> Reign ended </Th> <Th> Length </Th> <Th> Comments </Th> </Tr> <Tr> <Td> Prince Louis Antoine , Duke of Angoulême , `` King Louis XIX '' </Td> <Td> Kingdom of France </Td> <Td> Bourbon </Td> <Td> 2 August 1830 </Td> <Td> 2 August 1830 </Td> <Td> 20 minutes </Td> <Td> Succeeded with the abdication of his father , Charles X , only to himself abdicate in favour of his nephew , Henry V ( above ) . The question of whether Louis actually `` reigned '' is a philosophical one , as after his father signed the document of abdication , he contemplated his future for twenty minutes before himself signing . Many Legitimists did not recognise the abdications as valid , and recognised Charles X as king until his death in 1836 , before recognising Louis as king until his own death in 1844 . </Td> </Tr> </Table>
who had the shortest reign of a monarch 20 minutes
who had the shortest reign of a monarch 20 minutes
Prince Louis Antoine , Duke of Angoulême , `` King Louis XIX ''
Prince Louis Antoine , Duke of Angoulême , `` King Louis XIX ''