Lovestruck newlyweds make time for a chukka: Polo-maestro Prince Abdul Mateen in action with wife, Anisha Rosnah on the scene

The Sultan of Brunei, Hassanal Bolkiah, is one of the wealthiest men in the world, worth over £24bn – and famous for his collection of over 7,000 classic cars. Mateen is his fourth son and tenth child. The small nation of Brunei sits on the island of Borneo, on its northern coast, and is entirely surrounded by the Malaysian state of Sarawak. It is an incredibly oil-rich country.