Sheikh Hamdan bin Mohammed gestures as he wears a t-shirt bearing the logo of Dubai's 2020 World Expo campaign on top of Burj Khalifa on November 25, 2013. AFP
Sheikh Hamdan volunteers in a Dubai marine-clean up drive. WAM
Saudi Crown Prince Mohammed bin Salman (left) speaks with Sheikh Hamdan in 2018. EPA
Sheikh Hamdan rides his horse during an Equestrian Endurance Championship in Palmyra, 190 km northeast of Damascus in May 2000. AFP
Sheikh Hamdan bin Mohammed takes part in the men's heats of the Government Games in April 2019. Chris Whiteoak / The National
Sheikh Hamdan does a presentation on screen on day 2 at the World Government Summit at Madinat Jumeirah, Dubai in February this year. Chris Whiteoak / The National
Sheikh Hamdan receives Emirati astronauts Hazza Al Mansoori and Sultan Al Neyadi. Wam
Sheikh Hamdan with the Dubai World Cup trophy after Thunder Snow's victory at Meydan Racecourse in Dubai in March. Pawan Singh / The National
Sheikh Hamdan watches a performance of ‘This is Zayed, This is UAE' during the 47th UAE National Day celebrations, at Zayed Sports City in December, 2018. Mohamed Al Hammadi / Ministry of Presidential Affairs
Sheikh Hamdan pictured during Al Marmoom Heritage Festival at the Al Marmoum Camel Racetrack on April 16, 2014 in Dubai. Getty Images
Actor Damian Lewis and wife Helen McCrory present The Coventry Stakes trophy to Sheikh Hamdan during Royal Ascot 2015 in England. Getty Images for Ascot Racecourse
Sheikh Hamdan attends Cityscape Global at Dubai World Trade Centre on September 11, 2017. Getty Images
Gold medalist Sheikh Hamdan celebrates on August 29, 2014 on the podium during the medal ceremony of the Individual Endurance competition of the 2014 FEI World Equestrian Games, in the northwestern French city of Caen. AFP
Sheikh Mohammed bin Rashid speaks with his son Sheikh Hamdan during the opening session of Arab Media Forum in Dubai, on May 17, 2011. AFP
Sheikh Hamdan and his team, F3, win first place at the Gov Games in Dubai in May 2018. The National
Sheikh Hamdan bin Mohammed gestures as he wears a t-shirt bearing the logo of Dubai's 2020 World Expo campaign on top of Burj Khalifa on November 25, 2013. AFP
Sheikh Hamdan volunteers in a Dubai marine-clean up drive. WAM
Saudi Crown Prince Mohammed bin Salman (left) speaks with Sheikh Hamdan in 2018. EPA
Sheikh Hamdan rides his horse during an Equestrian Endurance Championship in Palmyra, 190 km northeast of Damascus in May 2000. AFP
Sheikh Hamdan bin Mohammed takes part in the men's heats of the Government Games in April 2019. Chris Whiteoak / The National
Sheikh Hamdan does a presentation on screen on day 2 at the World Government Summit at Madinat Jumeirah, Dubai in February this year. Chris Whiteoak / The National
Sheikh Hamdan receives Emirati astronauts Hazza Al Mansoori and Sultan Al Neyadi. Wam
Sheikh Hamdan with the Dubai World Cup trophy after Thunder Snow's victory at Meydan Racecourse in Dubai in March. Pawan Singh / The National
Sheikh Hamdan watches a performance of ‘This is Zayed, This is UAE' during the 47th UAE National Day celebrations, at Zayed Sports City in December, 2018. Mohamed Al Hammadi / Ministry of Presidential Affairs
Sheikh Hamdan pictured during Al Marmoom Heritage Festival at the Al Marmoum Camel Racetrack on April 16, 2014 in Dubai. Getty Images
Actor Damian Lewis and wife Helen McCrory present The Coventry Stakes trophy to Sheikh Hamdan during Royal Ascot 2015 in England. Getty Images for Ascot Racecourse
Sheikh Hamdan attends Cityscape Global at Dubai World Trade Centre on September 11, 2017. Getty Images
Gold medalist Sheikh Hamdan celebrates on August 29, 2014 on the podium during the medal ceremony of the Individual Endurance competition of the 2014 FEI World Equestrian Games, in the northwestern French city of Caen. AFP
Sheikh Mohammed bin Rashid speaks with his son Sheikh Hamdan during the opening session of Arab Media Forum in Dubai, on May 17, 2011. AFP
Sheikh Hamdan and his team, F3, win first place at the Gov Games in Dubai in May 2018. The National