Ms Giuffre's brother, Sky Roberts and his wife, Amanda, previously thanked the King for 'standing behind survivors' amid Andrew Mountbatten-Windsor's arrest in February.
Royal biographer Andrew Lownie said public anger is greater about Andrew Mountbatten-Windsor's behaviour and his links to Jeffrey Epstein than when King Edward VIII abdicated in 1936.
The picture, which shows the disgraced ex-prince and former US ambassador in bathrobes, while Epstein is fully clothed, is believed to have been taken in Massachusetts.
Following Andrew Mountbatten-Windsor's arrest on February 19, Catherine, Princess of Wales, appears to have adopted a more considered approach to her wardrobe.