Kate Middleton and Prince William’s favorite holiday destination was involved in a royal scandal.

The Duke and Duchess of Cambridge love staying in Mustique for summer breaks or holidays. However, the idyllic Caribbean island was setting for the scandal that ended Princess Margaret’s marriage with Antony Armstrong-Jones in 1970s.

Princess Margaret and Armstrong-Jones’ marriage was the first royal wedding to be televised in 1960. However, their engagement shocked the public as there were no signs that they were an item before their engagement announcement.

“Andrew wasn’t the only one to hog the headlines,” Andrew Morton wrote in his 1983 book “Andrew: The Playboy Prince.”

“A week later, Princess Margaret announced her engagement to Antony Armstrong-Jones, later Lord Snowdon. Again the news came as a shock to the public.”

However, Princess Margaret and Armstrong-Jones’ marriage was a tumultuous one as both reportedly had a string of affairs. Princess Margaret was photographed in Mustique with a man much younger than herself.

In the Channel 5 documentary “The Royal Family: Affairs and Infidelities,” 44-year-old Princess Margaret was with 27-year-old Roddy Llewellyn on the island of Mustique. Their photos “sent the press into a frenzy” when they resurfaced in 1976.

“He was highly unsuitable, so these photographs were fairly dramatic really,” royal biographer Anne Sebba said.

“Princess Margaret was after all the Queen’s sister, so what did this say about the Royal Family and their stability?”

Princess Margaret was the first royal to go through a divorce after 400 years since Henry VIII made the same move to end his marriage with Catherine of Aragon in 1540. Thus, the move was a “landmark moment” in the royal history.

Prior to Princess Margaret’s wedding to Armstrong-Jones, she was with Peter Townsend. However, their romance didn’t last long nor it ended in marriage no matter how much they loved each other because he was a divorcee and at the time, the Queen could not give her consent to them to get married.

Meanwhile, Prince William and Middleton just got back from their trip to Mustique. The couple reportedly stayed at Villa Antilles for two weeks where they spent $33,000 for the accommodation per week.

Kate Middleton
Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge attend the traditional Easter Sunday church service at St George's Chapel, Windsor Castle on April 21, 2019 in Windsor, England. Getty Images/Max Mumby