Jordan's Princess Haya bint Hussein, President of the International Equestrian Federation, attends the jumping Final Four competition at the World Equestrian Games at the d'Ornano stadium in Caen, September 7, 2014. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT EQUESTRIANISM ROYALS) 

Jordan's Princess Haya bint Hussein, President of the International Equestrian Federation, attends the jumping Final Four competition at the World Equestrian Games at the d'Ornano stadium in Caen, September 7, 2014. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT EQUESTRIANISM ROYALS) 

Jordan's Princess Haya bint Hussein, President of the International Equestrian Federation, attends the Individual freestyle Competition Dressage event at the World Equestrian Games at the d'Ornano stadium in Caen August 29, 2014. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT EQUESTRIANISM ROYALS) 

Jordan's Princess Haya bint Hussein, President of the International Equestrian Federation, attends the Individual freestyle Competition Dressage event at the World Equestrian Games at the d'Ornano stadium in Caen August 29, 2014. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT EQUESTRIANISM ROYALS) 

Jordan's Princess Haya bint Hussein, President of the International Equestrian Federation, attends the Individual freestyle Competition Dressage event at the World Equestrian Games at the d'Ornano stadium in Caen August 29, 2014. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT EQUESTRIANISM ROYALS) 

Jordan's Princess Haya bint Hussein, President of the International Equestrian Federation, attends the Individual freestyle Competition Dressage event at the World Equestrian Games at the d'Ornano stadium in Caen August 29, 2014. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT EQUESTRIANISM ROYALS) 

Jordan's Princess Haya bint Hussein, President of the International Equestrian Federation, reacts with a flag of the United Arab Emirates during the Individual freestyle Competition Dressage event at the World Equestrian Games at the d'Ornano stadium in Caen August 29, 2014. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT EQUESTRIANISM ROYALS) 

Jordan's Princess Haya bint Hussein, President of the International Equestrian Federation, reacts with a flag of the United Arab Emirates during the Individual freestyle Competition Dressage event at the World Equestrian Games at the d'Ornano stadium in Caen August 29, 2014. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT EQUESTRIANISM ROYALS) 

Jordan's Princess Haya bint Hussein, President of the International Equestrian Federation delivers her speech during the opening ceremony of the world Equestrian Games at the d'Ornano stadium in Caen, August 23, 2014. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT EQUESTRIANISM ROYALS) 

Jordan's Princess Haya bint Hussein, President of the International Equestrian Federation delivers her speech during the opening ceremony of the world Equestrian Games at the d'Ornano stadium in Caen, August 23, 2014. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT EQUESTRIANISM HEADSHOT ROYALS) 

Jordan's Princess Haya bint Hussein, President of the International Equestrian Federation, leaves the stage with French Prime Minister Manuel Valls (R) and France's President of Equestrian committee Laurent Beauvais (L) during the opening ceremony of the world Equestrian Games in Normandy at the d'Ornano stadium in Caen, August 23, 2014. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT EQUESTRIANISM ROYALS POLITICS) 

Petra Kvitova (R) of the Czech Republic poses with the winner's trophy and Princess Haya Bint Al-Hussein, wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum, after her women's singles final match against Sara Errani of Italy during the WTA Dubai Tennis Championships, February 23, 2013. REUTERS/Mohammed Salem (UNITED ARAB EMIRATES - Tags: SPORT TENNIS ROYALS) 

Petra Kvitova (R) of the Czech Republic poses with the winner's trophy and Princess Haya Bint Al-Hussein, wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum, after her women's singles final match against Sara Errani of Italy during the WTA Dubai Tennis Championships, February 23, 2013. REUTERS/Mohammed Salem (UNITED ARAB EMIRATES - Tags: SPORT TENNIS) 

Sheikha Al Jalila Bint Mohammed Bin Rashid Al Maktoum, daughter of Princess Haya Bint Al-Hussein and ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum, looks on as she stands beside her mother during the Dubai Ladies Masters golf tournament at the Emirates Golf Club in Dubai December 8, 2012. REUTERS/Jumana El Heloueh (UNITED ARAB EMIRATES - Tags: SPORT GOLF ROYALS ENTERTAINMENT) 

Feng Shanshan (L) of China holds her trophy as she poses with Princess Haya Bint Al-Hussein, wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum and daughter Sheikha Al Jalila Bint Mohammed Bin Rashid Al Maktoum during the fourth and final round of the Dubai Ladies Masters golf tournament at the Emirates Golf Club in Dubai December 8, 2012. REUTERS/Jumana El Heloueh (UNITED ARAB EMIRATES - Tags: SPORT GOLF ROYALS) 

Feng Shanshan (L) of China holds her trophy as she poses with Princess Haya Bint Al-Hussein, wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum and daughter Sheikha Al Jalila Bint Mohammed Bin Rashid Al Maktoum during the fourth and final round of the Dubai Ladies Masters golf tournament at the Emirates Golf Club in Dubai December 8, 2012. REUTERS/Jumana El Heloueh (UNITED ARAB EMIRATES - Tags: SPORT GOLF ROYALS) 

Sheikha Al Jalila Bint Mohammed Bin Rashid Al Maktoum, daughter of Princess Haya Bint Al-Hussein (L) and ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum, looks on after the women's singles final match between Agnieszka Radwanska of Poland and Julia Goerges of Germany at the WTA Dubai Tennis Championships February 25, 2012. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT TENNIS ROYALS) 

Sheikha Al Jalila Bint Mohammed Bin Rashid Al Maktoum, daughter of Princess Haya Bint Al-Hussein (L) and ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum, looks on after the women's singles final match between Agnieszka Radwanska of Poland and Julia Goerges of Germany at the WTA Dubai Tennis Championships February 25, 2012. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT TENNIS ROYALS) 

Princess Haya Bint Al-Hussein, wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum stands with her daughter Sheikha Al Jalila Bint Mohammed Bin Rashid Al Maktoum after the women's singles final match between Agnieszka Radwanska of Poland and Julia Goerges of Germany at the WTA Dubai Tennis Championships February 25, 2012. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT TENNIS ROYALS) 

Agnieszka Radwanska of Poland (C) poses with her trophy next to Julia Goerges of Germany (L) and Princess Haya Bint Al-Hussein, wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum, and her daughter Sheikha Al Jalila Bint Mohammed Bin Rashid Al Maktoum after the women's singles final match at the WTA Dubai Tennis Championships February 25, 2012. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT TENNIS ROYALS) 

Jordanian Princess Haya bint Al-Hussein and husband, Dubai ruler Sheikh Mohammed bin Rashid al-Maktoum, arrive for Ladies Day, the third day of racing at Royal Ascot in southern England June 16, 2011. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SPORT HORSE RACING POLITICS ROYALS) 

Vice President and Prime Minister of the UAE and Dubai's ruler, Sheikh Mohammed bin Rashid al-Maktoum walks with his wife Jordanian Princess Haya bint Hussein after the eighth and final race of the 16th Dubai World Cup at the Meydan Racecourse in Dubai March 26, 2011. The Dubai World Cup, with a cash prize of $10 million, is horse racing's richest race. REUTERS/Abdullah Muhsen (UNITED ARAB EMIRATES - Tags: SPORT HORSE RACING ROYALS) 

Denmark's Iben Tinning poses with Princess Haya Bint Al-Hussein after winning the Dubai Ladies Masters European Tour golf tournament in Dubai December 11, 2010. REUTERS/Rabih El Moghrabi (UNITED ARAB EMIRATES - Tags: SPORT GOLF) 

Jordan's Princess Haya bint Hussein, President of the International Equestrian Federation, speaks at the closing ceremony of the World Equestrian Games in Lexington, Kentucky, October 10, 2010. REUTERS/Caren Firouz (UNITED STATES - Tags: SPORT EQUESTRIANISM ROYALS) 

Jordan's Princess Haya bint Hussein, President of the International Equestrian Federation, speaks at the closing ceremony of the World Equestrian Games in Lexington, Kentucky, October 10, 2010. REUTERS/Caren Firouz (UNITED STATES - Tags: SPORT EQUESTRIANISM ENTERTAINMENT ROYALS) 

Jordan's Princess Haya bint Hussein, president of the international equestrian federation, congratulates riders after the medal ceremony for the Individual Jumping World Champioship at the World Equestrian Games in Lexington, Kentucky, October 9, 2010. REUTERS/Caren Firouz (UNITED STATES - Tags: SPORT EQUESTRIANISM ROYALS) 

Jordan's Princess Haya bint Hussein, president of the International Equestrian Federation, presents Tim McQuay of the U.S. with a gold medal after he and team-mates Tom McCutcheon, Craig Schmersal and Shawn Flarida won the team reining competition at the World Equestrian Games in Lexington, Kentucky September 26, 2010. REUTERS/John Sommers II (UNITED STATES - Tags: SPORT EQUESTRIANISM ANIMALS ROYALS) 

Jordan's Princess Haya bint Hussein (front L), president of the International Equestrian Federation, hugs Tim McQuay of the U.S. after presenting him with a gold medal as team-mates Tom McCutcheon, Craig Schmersal and Shawn Flarida (standing top, L-R) look on after they won the team reining competition at the World Equestrian Games in Lexington, Kentucky September 26, 2010. REUTERS/John Sommers II (UNITED STATES - Tags: SPORT EQUESTRIANISM ANIMALS ROYALS) 

Jordan's Princess Haya bint Hussein, president of the international equestrian federation, addresses the crowd during the opening ceremonies at the World Equestrian Games in Lexington, Kentucky, September 25, 2010. REUTERS/John Sommers II (UNITED STATES - Tags: SPORT EQUESTRIANISM ROYALS) 

Jordan's Princess Haya bint Hussein, president of the international equestrian federation, declares the games open during the opening ceremony at the World Equestrian Games in Lexington, Kentucky September 25, 2010. REUTERS/Caren Firouz (UNITED STATES - Tags: SPORT EQUESTRIANISM PROFILE ROYALS) 

Jordan's Princess Haya bint Hussein, president of the international equestrian federation, declares the games open during the opening ceremony at the World Equestrian Games in Lexington, Kentucky September 25, 2010. REUTERS/Caren Firouz (UNITED STATES - Tags: SPORT EQUESTRIANISM PROFILE ROYALS) 

Jordanian Princess Haya bint Al-Hussein (2nd L) and her husband, Dubai ruler Sheikh Mohammed bin Rashid al-Maktoum (C), walk to the parade ring on Ladies Day, the third day of horse racing at Royal Ascot in southern England June 17, 2010. REUTERS/Luke MacGregor (BRITAIN - Tags: SPORT ROYALS HORSE RACING SOCIETY POLITICS) 

Jordanian Princess Haya bint Al-Hussein and her husband, Dubai ruler Sheikh Mohammed bin Rashid al-Maktoum (C), walk to the parade ring on Ladies Day, the third day of horse racing at Royal Ascot in southern England June 17, 2010. REUTERS/Luke MacGregor (BRITAIN - Tags: SPORT ROYALS HORSE RACING SOCIETY) 

Jordanian Princess Haya bint Al-Hussein and her husband, Dubai ruler Sheikh Mohammed bin Rashid al-Maktoum (R), walk to the parade ring on Ladies Day, the third day of horse racing at Royal Ascot in southern England June 17, 2010. REUTERS/Luke MacGregor (BRITAIN - Tags: SPORT ROYALS HORSE RACING SOCIETY) 

Jordanian Princess Haya bint Al-Hussein, wife of the Dubai ruler Sheikh Mohammed bin Rashid al-Maktoum, attends the second day of racing at Royal Ascot in southern England June 16, 2010. REUTERS/Luke MacGregor (BRITAIN - Tags: SPORT EQUESTRIANISM HORSE RACING SOCIETY ROYALS) 

Princess Haya bint Al-Hussein of Jordan, wife of Dubai's ruler Sheikh Mohammed bin Rashed Al-Maktoum and president of the SportAccord's organising committee, talks to former U.N. chief Kofi Annan (R) at the SportAccord International Convention in Dubai April 29, 2010. REUTERS/Mosab Omar (UNITED ARAB EMIRATES - Tags: POLITICS SPORT) 

SportAccord Convention Chairman Hein Verbuggen (L-R), Princess Haya bint Al-Hussein of Jordan, wife of Dubai's ruler Sheikh Mohammed bin Rashed Al-Maktoum and president of the SportAccord's organising committee, and former U.N. chief Kofi Annan attend the final session of the SportAccord International Convention in Dubai April 29, 2010. REUTERS/Mosab Omar (UNITED ARAB EMIRATES - Tags: SPORT POLITICS) 

Princess Haya bint Al-Hussein of Jordan, wife of Dubai's ruler Sheikh Mohammed bin Rashed Al-Maktoum and president of the SportAccord's organising committee, talks to former U.N. chief Kofi Annan (R) at the SportAccord International Convention in Dubai April 29, 2010. REUTERS/Mosab Omar (UNITED ARAB EMIRATES - Tags: POLITICS SPORT) 

Jordanian Princess Haya bint Al-Hussein (L), wife of Dubai ruler Sheikh Mohammed bin Rashid al-Maktoum and president of SportAccord's organising committee, sits next to former U.N. chief Kofi Annan (R) at SportAccord International Convention in Dubai April 29, 2010. REUTERS/Mosab Omar (UNITED ARAB EMIRATES - Tags: SPORT POLITICS ROYALS) 

Venus Williams of the U.S. poses with Princess Haya Bint Al-Hussein - wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum, after defeating Victoria Azarenka of Belarus in the final of the WTA Dubai Tennis Championships, February 20, 2010.REUTERS/Mosab Omar (UNITED ARAB EMIRATES - Tags: SPORT TENNIS ROYALS) 

Princess Haya Bint Al-Hussein - wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum waves during the final between Victoria Azarenka of Belarus and Venus Williams of the U.S. at the WTA Dubai Tennis Championships, February 20, 2010. Also pictured is the Princess's brother Prince Ali Bin Al-Hussein of Jordan (R) and the president of Dubai Tennis Federation Sheikh Hasher bin Maktoum, REUTERS/Mosab Omar (UNITED ARAB EMIRATES - Tags: SPORT TENNIS ROYALS) 

Princess Haya Bint Al-Hussein, wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum arrives with her brother Prince Ali Bin Al-Hussein of Jordan to watch the final match between Victoria Azarenka of Belarus and Venus Williams of the U.S. at the WTA Dubai Tennis Championships, February 20, 2010. REUTERS/Mosab Omar (UNITED ARAB EMIRATES - Tags: ROYALS SPORT TENNIS) 

Princess Haya Bint Al-Hussein - wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum, receives a bouquet of flowers following the final between Venus Williams of the U.S. and Victoria Azarenka of Belarus at the WTA Dubai Tennis Championships, February 20, 2010. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT TENNIS ROYALS) 

Venus Williams of the U.S. poses with Princess Haya Bint Al-Hussein - wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum, after defeating Victoria Azarenka of Belarus in the final of the WTA Dubai Tennis Championships, February 20, 2010. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT TENNIS ROYALS) 

Venus Williams of the U.S. poses with Princess Haya Bint Al-Hussein - wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum, after defeating Victoria Azarenka of Belarus in the final of the WTA Dubai Tennis Championships, February 20, 2010. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT TENNIS ROYALS) 

Venus Williams of the U.S. poses with the president of Dubai Tennis Federation Sheikh Hasher bin Maktoum (L), Princess Haya Bint Al-Hussein - the wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum (2nd-R) and Prince Ali Bin Al-Hussein of Jordan, after she defeated Victoria Azarenka of Belarus in the final of the WTA Dubai Tennis Championships, February 20, 2010. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT TENNIS ROYALS) 

Dubai's Sheikh Mohammed bin Rashid Al Maktoum (R) and his wife Princess Haya bint Al Hussein arrive for the first day of the Royal Ascot race meeting June 16, 2009. REUTERS/ Eddie Keogh (BRITAIN SPORT HORSE RACING ROYALS) 

Princess Haya Bint Al-Hussein, wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum, speaks at a UN Conference on the launch of the "2009 Global Assessment Report On Disaster Risk Reduction", in Manama May 17, 2009. REUTERS/Hamad I Mohammed (BAHRAIN POLITICS ROYALS) 

Princess Haya Bint Al-Hussein, wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum, attends a UN Conference on the launch of the "2009 Global Assessment Report On Disaster Risk Reduction", in Manama May 17, 2009. REUTERS/Hamad I Mohammed (BAHRAIN POLITICS ROYALS) 

Princess Haya Bint Al-Hussein (L), wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum, United Nations Secretary-General Ban Ki-moon (C) and Bahrain's Prime Minister Sheikh Khalifa bin Salman al-Khalifa (R) arrive at the UN Conference on the launch of the "2009 Global Assessment Report On Disaster Risk Reduction", in Manama May 17, 2009. REUTERS/Hamad I Mohammed (BAHRAIN POLITICS ROYALS) 

Princess Haya Bint Al-Hussein, wife of the ruler of Dubai Sheikh Mohammed Bin Rashid Al Maktoum, speaks at a UN Conference on the launch of the "2009 Global Assessment Report On Disaster Risk Reduction", in Manama May 17, 2009. REUTERS/Hamad I Mohammed (BAHRAIN POLITICS) 

Australia's women's rugby team celebrate after being presented with the trophy from Princess Haya Bint Al-Hussein (top L), wife of Dubai ruler and UAE Prime Minister Sheikh Mohammed bin Rashid al-Maktoum, after winning their IRB Rugby World Cup Sevens final match against New Zealand in Dubai March 7, 2009. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES SPORT RUGBY) 

Princess Haya Bint Al-Hussein (L), wife of Dubai ruler and UAE Prime Minister Sheikh Mohammed bin Rashid al-Maktoum, presents the trophy to Australia's Ru Sims (2nd R) after they won their IRB Rugby World Cup Sevens final match against New Zealand in Dubai March 7, 2009. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES SPORT RUGBY) 

Australia's women's rugby team celebrate after being presented with the trophy from Princess Haya Bint Al-Hussein (top C), wife of Sheikh Mohammed bin Rashid al-Maktoum, ruler of Dubai and UAE Prime Minister, after winning their IRB Rugby World Cup Sevens final match against New Zealand in Dubai March 7, 2009. REUTERS/Jumana El Heloueh (UNITED ARAB EMIRATES SPORT RUGBY) 

Venus Williams (C) of the U.S. holds the trophy after receiving from Princess Haya Bint Al-Hussein (L), wife of Sheikh Mohammed Bin Rashid Al Maktoum, ruler of Dubai and UAE Prime Minister, at the final match of the WTA Dubai Tennis Championships February 21, 2009. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES) 

Princess Haya Bint Al-Hussein, wife of Sheikh Mohammed Bin Rashid Al Maktoum who is the ruler of Dubai and UAE Prime Minister, poses at the end of the final match between Venus Williams of the U.S. and Virginie Razzano of France at the WTA Dubai Tennis Championships February 21, 2009. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES) 

Jordan's Princess Haya, president of the International Equestrian Federation, hugs German gold medalist Isabell Werth as her teammates Heike Kemmer and Nadine Capellmann (L) look on during the medals ceremony for the equestrian dressage grand prix competition at the Beijing 2008 Olympic Games in Hong Kong August 14, 2008. REUTERS/Caren Firouz (CHINA) 

U.S. first lady Laura Bush with Princess Haya Bint Al Hussein (R) attends a conference to highlight the fight against breast cancer, at the Dubai Chamber of Commerce and Industry during her Middle East tour in Dubai October 22, 2007. REUTERS/Regi Varghese (UNITED ARAB EMIRATES) 

U.S. first lady Laura Bush (C), flanked by Obaid Humaid Al Tayer (L) and Princess Haya Bint Al Hussein, gestures to participants during a breast cancer awareness conference held at the Dubai Chamber of Commerce and Industry in Dubai, October 22, 2007, as part of her Middle East tour to highlight the fight against breast cancer. REUTERS/Regi Varghese (UNITED ARAB EMIRATES) 

Kofi Annan (L) President of the Global Humanitarian Forum shakes hands with Rajendra Pachauri (R) co-awarded the 2007 Peace Nobel Prize and Chairman of the Intergovernmental Panel on Climate Change (IPCC) with Princess Haya Bint Al Hussein of Jordan before a news conference in Geneva October 17, 2007. Pachauri and Princess Aaya were elected to the Forum's Foundation Board. REUTERS/Denis Balibouse (SWITZERLAND)