She, of course, is the younger sister of the former Kate Middleton, now the Duchess of Cambridge.
Following her sister's wedding, demand for photos of Middleton became such that paparazzi took up to 400 pictures of her every day, an inquiry into Britain's press standards heard in 2012. The groom is even rumored to be incorporating a tartan in his wedding outfit.
Matthews, 41, is a millionaire financier who first met Middleton more than a decade ago when her family vacationed in the Caribbean island of St. Bart's, where his family owns a resort.
The Scottish estate, which includes a historic castle, is less than 30 kilometres from the world famous Loch Ness. The couple shares a love for the country and they are often spotted vacationing in James' family estate.
After their huge wedding, Pippa Middleton is set to acquire numerous assets including joint use of her husband's private jet, valued at $A5.2 million as well as his London mansion which is valued at close to $A30 million. Credit News.com.au. Kate Middleton's sister has previously worked for Table Talk, a high-end catering company. A lamb dish lifted from Pippa's book will be included in the wedding feast as an added personal touch.
The final preparations are being made at both the church and the Middleton family home in nearby Bucklebury, where an estimated 350 guests - including Prince Harry and Meghan Markle - will gather for the wedding reception. The Russian donor has given 17lb of beluga caviar for the wedding. Although there has been no official confirmation, reports suggest that he has indeed designed the wedding gown.
The guests won't have to worry about the unpredictable British weather after it was revealed they will party inside a glass marquee worth upwards of $A175,000, which was imported from Belgium. These signature toilets are from AndyLoos, which cost around $8,000 to rent.
The furniture and equipment are being supplied by a company called Jones Hire after workers were seen offloading chairs from one of the event company's trucks. According to reports, the Duchess will just do the reading, as she wants Pippa to be in the limelight.
Middleton took the spotlight by surprise when she acted as maid of honour at the 2011 wedding of her sister to William mainly due to her svelte figure, the back of which was captured by many a camera.
The actress, who has been dating Prince Harry since past year, was spotted at London's Heathrow Airport last night before she was whisked away to Kensington Palace. [Image by Kirsty Wigglesworth/AP Images] Meanwhile, as of publishing time, Pippa Middleton's wedding ceremony has already started.
The confirmed guest who will not attend the wedding is Spencer's girlfriend Vogue Williams.
Pippa will get married to multi-millionaire hedge fund manager James Matthews on May 20 at the 12th century St Mark's Church in Englefield, Berkshire.
Prince Harry has also arrived at the chapel, but there's no sighting of Meghan Markle so far.
Royal watchers were cheered by the sight of Prince George and Princess Charlotte with the other pageboys and bridesmaids who arrived in classic cars. Middleton's fiance will inherit the title when his father dies which in turn, will give Pippa the courtesy title of Lady Glen Affric.