Long-forgotten portraits reveal few better at capturing Diana's luminous beauty, writes RICHARD KAY

Long before the world’s photographers had discovered Lady Diana Spencer, she was already displaying an extraordinarily natural poise in front of the cameras.

Over the years few were better at capturing her luminous beauty than Lord Snowdon, the society cameraman and ex-husband of the Queen’s sister Princess Margaret.

The images he shot were some of the most iconic and memorable of Diana ever taken.

But some such as this long forgotten portrait have been rarely seen. Now with the 25th anniversary of the princess’s tragic death approaching, and five years after Snowdon himself died, it has resurfaced.