PHOTOS: Prince Harry's Secret Tryst With Stunning New girlfriend

PRINCE Harry and his gorgeous new girl are related, The Sun can reveal. A family tree revealed blue-blooded blonde Florence Brudenell-Bruce, 25, is a distant cousin of the 26-year-old Royal. Flee's blue-blooded links to Harry, Princess Diana and even Prince Charles' second wife Camilla can be traced back to the 18th Century. A family tree reveals she is an eighth cousin of her new beau and a seventh cousin once removed of both Diana and Camilla. The common factor in the aristocratic web is the Honourable Sir Edward Walpole, the son of Britain's first Prime Minister Sir Robert Walpole. Edward, who died in 1784, had a daughter, Maria, who married into the Royal Family. A Royal source said last night: "Florence is surrounded by so much blue blood that she's tinged with royalty even without the close attentions of Prince Harry." The links mean that if Harry ever walks her down the aisle he would complete a Royal daisy chain. Flee remains a close chum of Camilla's son Tom Parker Bowles, 36, who has been spotted in her local pub The Cock and Bottle in Notting Hill. Harry and brother Prince William have also been to the humble corner boozer, supping beer at the tables outside. Remarkably, Florence is also a distant relative of Esther Rantzen, although the TV personality said yesterday she did not know her. Flee's grandmother Dana shares a great-great-grandfather with Esther. ROYAL loverboy Prince Harry secretly spent a night at his new girlfriend's flat, The Sun can reveal. Harry was seen on Sunday evening arriving at the �2.5million block housing the home of stunning lingerie and swimwear model Florence Brudenell-Bruce. The Army helicopter pilot, 26, turned up at 9pm in his Audi. And after a night in the company of 25-year-old Florence - known as Flee - he was seen leaving in the same car the following morning. Sources said he arrived back at his apartment at St James's Palace at around noon. A witness said: "I saw Harry arrive at her house in his car. There was a team of protection officers with him travelling in a separate Range Rover. "He got out and went inside. They waited outside. I didn't see him again until he emerged the following morning." Leggy socialite Florence - an old flame of Formula One racer Jenson Button, who has a pad a few hundred yards away - again stayed silent on the romance yesterday. But the Old Etonian's daughter smiled for the cameras occasionally as she appeared outside her home in trendy Notting Hill, West London, in THREE different outfits.At 8.02am, she went jogging in running leggings and a white vest, sporting shades and listening to an iPod. After her run she headed out again at 8.59am, this time in tassled brown boots, skin-tight jeans and white top. She had different sunglasses and carried a red leather handbag, returning just before 5pm. At 7.05pm, she left for the third time in black jeans with a loose black top and multi-coloured trainers. She had silver bangles on her wrist and carried a hippie-style shoulder bag. The Sun exclusively revealed Flee as Harry's new girl yesterday - and told how she was a sometime actress who has been in a Bollywood movie.