It's Northern Ireland's most secretive celebrity wedding of the year.
Co Down actress Flora Montgomery is expected to tie the knot today in the grand surroundings of her family's ancestral home in Greyabbey.
Details of the wedding are so hush-hush that the identity of her groom is unknown, although it is understood he is a financier from London.
The 40-year-old star of stage and screen is the daughter of fine art and property consultant William Montgomery of Rosemount House and Estate and his second wife Daphne. The majestic estate has been in the Montgomery family since the early 17th century.
According to sources, the VIP guest list is expected to include Prince Frederik and Princess Mary of Denmark, who are friends of the couple's, as well as Flora's brother Hugh and two sisters Rose and Frances.
In the village of Greyabbey yesterday locals were keeping tight-lipped about the showbiz wedding. Staff at Rosemount Estate and clergy from the nearby St Saviour's Church refused to comment on the wedding, saying it was a "private event".
A tourism website for the area stated that the Abbey, which is set in the grounds of Rosemount House, would be closed to the public on Saturday, August 30 with only limited access to the site on Friday, August 29. The website also said that normal access would be restored from Sunday, August 31.
Flora Montgomery graduated from The Gaiety School of Acting in Dublin in 1994. A descendant of Ulster-Scottish Laird Hugh Montgomery, she went on to star in a number of stage productions as well as high-profile television shows. She won the Irish Times Best Actress Award for her role in August Strindberg's Miss Julie and performed in the world premiere of The Reckoning, a two-hander with Jonathan Pryce.
Notable television appearances include Wuthering Heights, The Bill, Pulling Moves, Poirot, Murphy's Law, Father And Son, Quirke and Endeavour. She has also starred in a number of big screen productions including the Irish movie When Brendan Met Trudy and Hollywood film Basic Instinct 2, alongside Sharon Stone and David Morrissey.
Little is known of her private life as she rarely gives interviews, and in the few she has given, she refused to comment on nude scenes she had appeared in.
The Montgomery ancestral home, which is set to host the lavish wedding reception, was built in 1762 and is considered to be one of the finest Georgian country houses in Ireland. The house and grounds, which include beautiful gardens, can be viewed by appointment.
The present house is the third to be built on the site overlooking Strangford Lough, a designated area of special scientific interest. The ruins of Grey Abbey itself, built by Anglo-Norman John de Courcy in 1193, contain many fascinating Montgomery memorials
In recent years country houses and private estates have become increasingly popular as wedding venues.
Flora Montgomery is best known for her TV and movie work which includes appearances in The Bill and several period dramas.
In 2003, she was named as one of European film's Shooting Stars by European Film Promotion. Her notable TV appearances include Urban Gothic, Pulling Moves and Midsomer Murders. She also acted in the 2001 film The Discovery of Heaven and in 2006 in Basic Instinct 2. Montgomery also appeared in an episode of the medical series "Body Story 2" in 2001.