World's Richest Royals

1. King Bhumibol Adulyadej, Thailand ($30 billion)

2. Sultan Haji Hassanal Bolkiah, Brunei ($20 billion)

3. Sheikh Khalifa Bin Zayed Al Nahayan, United Arab Emirates ($18 billion)

4. King Abdullah bin Abul Aziz, Saudi Arabia ($17 billion)

5. Sheikh Mohammed Bin Rashid Al Maktoum, Dubai ($12 billion)

6. Prince Hans-Adam II von und zu Liechtenstein, Liechtenstein ($3.5 billion)

7. King Mohammed VI, Morocco($2.5 billion)

8. Sheikh Hamad bin Khalifa Al Thani, Qatar ($2 billion)

9. Prince Albert II, Monaco ($1 billion)

10. Prince Karim Al Husseini, Aga Khan ($800 million)

11. Sultan Qaboos bin Said, Oman ($700 million)

12. Queen Elizabeth II, U.K. ($450 million)

13. Sheikh Sabah Al-Ahmad Al-Jaber Al Sabah, Kuwait ($400 million)

14. Queen Beatrix Wilhelmina Armgard, Netherlands ($200 million)

15. King Mswati III, Swaziland ($100 million)