After being replaced as Lord Great Chamberlain last year, David Rocksavage and Rose Hanbury will return to their status.
The Marquess is also a filmmaker and lives with his wife at Houghton Hall in Norfolk.
Anmer Hall, where the Prince and Princess of Wales often spend Christmas, is situated just two miles from their home.
The Marquess and Marchioness are known to be friendly with the royals and often seen at royal events.
The Marchioness's grandmother, Lady Rose Lambert, was a bridesmaid at Queen Elizabeth's wedding in 1947.