Horseman who won Olympic gold in the team three-day event at the 1972 Olympics as well as silver in the same event at the 1988 Olympics.
He graduated from the Royal Military Academy Sandhurst.
He worked as a columnist for the equestrian magazine "Horse & Hound."
He is the ex-husband of Anne, Princess Royal, and he had four children: Peter, Zara, Felicity, and Stephanie.
He was married to the daughter of Queen Elizabeth II from 1973 to 1992.