The heiress on horseback

WHO? Horse-mad Lady Tatiana Mountbatten, 27, once wanted to be a ski instructor, but now trains dressage horses. A cousin of the Queen, she was launched into society with a ball when she was 18.

Her polo-playing father George swelled his fortune by founding and selling price-comparison company uSwitch, and is thought to live in Switzerland.

After stints in Denmark and Germany, Tatty has settled in suitably royal Windsor, where she runs a very smart horse yard.

SCHOOL: The £ 37,000– a- year Millfield School in Somerset, one of Britain’s most expensive public schools.

PARENTS: George Mountbatten, 4th Marquess of Milford Haven, and his first wife, Sarah Walker, daughter of East End boxer-turned-businessman George Walker. ANCESTRAL HOME: Great Trippetts, West Sussex. ANCESTORS: Catherine the Great; Queen Victoria; and 1st Earl Mountbatten of Burma. MONEY: Dad sold his business for £210 million in 2006. BOYFRIENDS: Exes include former England polo captain Richard Le Poer. MOST LIKELY TO SAY: ‘I’m not interested unless there’s a horse involved.’