<Table> <Tr> <Th> Rank </Th> <Th> Name </Th> <Th> Title </Th> <Th> Residence </Th> <Th> Net worth </Th> <Th> Source of wealth </Th> </Tr> <Tr> <Td> </Td> <Td> Ahmed bin Saeed Al Maktoum </Td> <Td> Chairman of Dubai Supreme Fiscal Committee <P> Dubai Sheikh </P> </Td> <Td> United Arab Emirates </Td> <Td> $31.7 billion (April 2011) </Td> <Td> Chairman of the Emirates Group, Dubai World, Noor Bank, DACC, and Noor Takaful insurance company . </Td> </Tr> <Tr> <Td> </Td> <Td> Bhumibol Adulyadej </Td> <Td> King of Thailand (died 2016) </Td> <Td> Thailand </Td> <Td> 7010300000000000000 ♠ $30.0 billion (April 2011) </Td> <Td> Investments derived from the Bureau of the Crown Property . </Td> </Tr> <Tr> <Td> </Td> <Td> Hassanal Bolkiah </Td> <Td> Sultan of Brunei </Td> <Td> Brunei </Td> <Td> 7010200000000000000 ♠ $20.0 billion (April 2011) </Td> <Td> Profits from oil and gas industry . </Td> </Tr> <Tr> <Td> </Td> <Td> Abdullah bin Abdul Aziz Al Saud </Td> <Td> King of Saudi Arabia (died 2015) </Td> <Td> Saudi Arabia </Td> <Td> 7010180000000000000 ♠ $18.0 billion (April 2011) </Td> <Td> Profits from oil industry . </Td> </Tr> <Tr> <Td> </Td> <Td> Khalifa bin Zayed Al Nahyan </Td> <Td> President of the United Arab Emirates Emir of Abu Dhabi </Td> <Td> United Arab Emirates </Td> <Td> 7010150000000000000 ♠ $15.0 billion (April 2011) </Td> <Td> Investments from the Abu Dhabi Investment Authority . </Td> </Tr> <Tr> <Td> 6 </Td> <Td> Mohammed VI </Td> <Td> King of Morocco </Td> <Td> Morocco </Td> <Td> 7009570000000000000 ♠ $5.7 billion (2015) </Td> <Td> Investments in SNI and Siger Holdings . </Td> </Tr> <Tr> <Td> 7 </Td> <Td> Mohammed bin Rashid Al Maktoum </Td> <Td> Prime Minister of the United Arab Emirates Emir Sheikh of Dubai </Td> <Td> United Arab Emirates </Td> <Td> 7009450000000000000 ♠ $4.5 billion (April 2011) </Td> <Td> Majority share of Dubai Holding and investments from the Abu Dhabi Investment Authority . </Td> </Tr> <Tr> <Td> 8 </Td> <Td> Hans Adam II </Td> <Td> Prince of Liechtenstein </Td> <Td> Liechtenstein </Td> <Td> 7009350000000000000 ♠ $3.5 billion (April 2011) </Td> <Td> Holdings in the Prince of Liechtenstein Foundation . </Td> </Tr> <Tr> <Td> 9 </Td> <Td> Hamad bin Khalifa Al Thani </Td> <Td> Emir of Qatar (as of 2011, abdicated 2013) </Td> <Td> Qatar </Td> <Td> 7009240000000000000 ♠ $2.4 billion (April 2011) </Td> <Td> From various enterprises . </Td> </Tr> <Tr> <Td> 10 </Td> <Td> Albert II </Td> <Td> Prince of Monaco </Td> <Td> Monaco </Td> <Td> 7009100000000000000 ♠ $1.0 billion (April 2011) </Td> <Td> Various enterprises, including Société des bains de mer de Monaco and casinos . </Td> </Tr> <Tr> <Td> 11 </Td> <Td> Karim al - Hussayni </Td> <Td> Aga Khan IV </Td> <Td> France </Td> <Td> 7008800000000000000 ♠ $800 million (July 2010) </Td> <Td> From various enterprises, including Aga Khan Development Network . </Td> </Tr> <Tr> <Td> 13 </Td> <Td> Qaboos bin Said al Said </Td> <Td> Sultan of Oman </Td> <Td> Oman </Td> <Td> 7008700000000000000 ♠ $700 million (July 2010) </Td> <Td> From various enterprises . </Td> </Tr> <Tr> <Td> 13 </Td> <Td> Elizabeth II </Td> <Td> Queen of the United Kingdom and other Commonwealth realms (etc ...) </Td> <Td> United Kingdom </Td> <Td> 7008450000000000000 ♠ $450 million (April 2011) </Td> <Td> From property, jewellery and other assets . See Finances of the British Royal Family . </Td> </Tr> <Tr> <Td> 14 </Td> <Td> Sabah Al - Ahmad Al - Jaber Al - Sabah </Td> <Td> Emir of Kuwait </Td> <Td> Kuwait </Td> <Td> 7008350000000000000 ♠ $350 million (July 2010) </Td> <Td> From various enterprises . </Td> </Tr> <Tr> <Td> 15 </Td> <Td> Beatrix </Td> <Td> Queen of the Netherlands (as of 2011, abdicated 2013) </Td> <Td> Netherlands </Td> <Td> 7008200000000000000 ♠ $200 million (April 2011) </Td> <Td> Holdings in Royal Dutch Shell . </Td> </Tr> <Tr> <Td> 16 </Td> <Td> Mswati III </Td> <Td> King of Swaziland </Td> <Td> Swaziland </Td> <Td> 7008100000000000000 ♠ $100 million (July 2010) </Td> <Td> From various enterprises . </Td> </Tr> </Table> <Tr> <Th> Rank </Th> <Th> Name </Th> <Th> Title </Th> <Th> Residence </Th> <Th> Net worth </Th> <Th> Source of wealth </Th> </Tr> <Tr> <Td> </Td> <Td> Ahmed bin Saeed Al Maktoum </Td> <Td> Chairman of Dubai Supreme Fiscal Committee <P> Dubai Sheikh </P> </Td> <Td> United Arab Emirates </Td> <Td> $31.7 billion (April 2011) </Td> <Td> Chairman of the Emirates Group, Dubai World, Noor Bank, DACC, and Noor Takaful insurance company . </Td> </Tr> <Tr> <Td> </Td> <Td> Bhumibol Adulyadej </Td> <Td> King of Thailand (died 2016) </Td> <Td> Thailand </Td> <Td> 7010300000000000000 ♠ $30.0 billion (April 2011) </Td> <Td> Investments derived from the Bureau of the Crown Property . </Td> </Tr>

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