Sarah Ferguson Didn't Feel 'Worthy' Of Attending Prince William, Kate Middleton's Royal Wedding

Sarah Ferguson is getting candid about her 2011 wedding invite snub from Prince William and Kate Middleton.

The Duchess of York, 61, was noticeably absent from her nephew's nuptials, which was held at Westminster Abbey in London in April 2011. However, she has no hard feelings over not getting an invitation.

In a new interview, Ferguson revealed that she didn’t fight the decision because she felt she wasn’t "worthy" of attending the wedding of the second in line to the British throne. Instead, she chose to remove herself from the situation and go on a trip to Thailand.

"I didn’t think I was probably worthy to go to their wedding," Ferguson told Town & Country in an interview published Monday. "I took myself to Thailand, actually, to be far away from it so that I could try and heal."

Prince William and Middleton's wedding came amid a tumultuous time for the duchess, Harper's Bazaar noted. A year before the nuptials, she was busted for selling "access" to her ex-husband, Prince Andrew, and was caught on tape making a £500,000 ($690,000) deal.

Prince Andrew and their two daughters, Princess Beatrice and Princess Eugenie, both attended the 2011 ceremony, however.

During the interview, she declined to comment on Prince Harry and Meghan Markle's decision to quit royal duties, but she did share her thoughts on how Princess Diana might feel if she were still alive.

"I believe that Diana would be so proud of her boys … and she'd be so proud of her grandchildren," Ferguson said.

While she wasn't invited to the Duke and Duchess of Cambridge's nuptials, she was present when Prince Harry and Markle tied the knot in May 2018 in St. George's Chapel at Windsor Castle.

“It was very kind of them,” she told "Good Morning Britain" of the Sussexes in November 2018, adding that it was “quite extraordinary” when she heard the crowd cheering during her arrival at the ceremony.

She continued, “I can’t thank them enough for doing that because it was nerve-wracking. … I sort of looked around like, ‘Are they doing that for me?’ Then someone went ‘Fergie,’ and it was the old Fergie back.”

It wasn’t the first time Ferguson had spoken about the two royal weddings. In an interview after attending Prince Harry and Markle’s big day, she said she was “honored” and “grateful” to witness the ceremony even if she was not invited to the reception hosted by Prince Charles.

She also once admitted that missing Prince William and Middleton’s royal wedding made her ponder on the wrong choices she's made in her life. Ferguson said she watched the ceremony on television.

"I was that bride and at 25 years old I went down the aisle of Westminster Abbey," Ferguson said on "The Daily." "It caused me to have great soul searching on regret, on all the things, you look at."

The Duchess of York was at odds with the royal family for years following her split from Prince Andrew in 1992 and after she was photographed with her financial advisor in a bikini while he was sucking her toes.

However, Ferguson remains amicable with her ex-husband and has slowly returned to the royal circle. In 2019, she joined Queen Elizabeth II and the Duke of York at Balmoral for Her Majesty's summer holidays.