London, Aug 23 : Prince William has had a secret summer vacation in Cornwall without his girlfriend Kate Middleton, it has emerged.

And while Middleton was absent from the seen, Lady Natasha Rufus Isaacs – an old chum of the second in line to the throne – was often to be seen by his side, reports the Telegraph.

When asked, Lady Natasha said: "I don''t want to talk about the holiday. It was a private occasion."

Prince Harry was also among the guests enjoying the five-day break at a house rented by Lady Natasha''s father in Trebetherick.

Lady Natasha''s brother, Viscount Julian Erleigh, 23, is one of Harry''s best pals.

One regular at the local Oystercatcher bar where the princes and their friends caroused on a number of nights during their holiday in the first week of July said: "It says a lot for the discretion of people who live here that it has remained a secret for this long.

"Sometimes there were about 20 of them in here. All of the princes'' female friends are very pretty, but I recall Natasha well. She stood out."

Lady Natasha met William when she attended Westonbirt School, a mere five minutes from Highgrove, and was close enough to him by the time he celebrated his 21st birthday party to be seated at the top table. (ANI)