Sarah Ferguson and Queen Elizabeth II
Queen Elizabeth II has already welcomed back Sarah Ferguson in the royal fold ahead of Princess Eugenie's royal wedding. Pictured: Ferguson passes Queen Elizabeth II as she spectates at the Guards Polo Club on July 25, 2004 in Windsor, England. Getty Images/Carl De Souza

Queen Elizabeth II has already welcomed Sarah Ferguson back into the royal fold ahead of Princess Eugenie's wedding.

According to royal correspondent Camilla Tominey, a journalist The Sydney Morning Herald, is no longer a royal outsider. Queen Elizabeth II has already befriended Prince Andrew's ex-wife.

In fact, Ferguson was invited to Princess Beatrice's 30th birthday party in August where the Queen was also present as a guest of honor. Queen Elizabeth II was reportedly impressed with how she brought up her two daughters Princess Eugenie and Princess Beatrice.

"Her Majesty thinks Sarah has raised two lovely daughters and is very fond of both of them and looking forward to Eugenie's wedding, which they obviously chatted about at the party," an insider said. "The Queen always tries to see the best in people and she has stayed in close touch, even having tea with her regularly at Windsor."

For Princess Eugenie's upcoming big day, Ferguson is not only expected to seat alongside the Duke of York and Prince Beatrice as the bride's mom. She will also be treated as "part of the family" at the champagne reception that Her Majesty is hosting after the wedding ceremony.

Also, Ferguson has been visiting the Queen in Balmoral. In fact, last August she was there with Prince Andrew and Princess Beatrice. It was actually her third year in a row holidaying at the monarch's estate in Scotland. They were also spotted chatting during the Royal Ascot.

Ferguson has always wanted to maintain her friendship with the Queen following her split from Prince Andrew. In a past interview, she shared a conversation she had with the monarch.

"When I met Her Majesty about it, she asked, 'What do you require, Sarah?' and I said, 'Your friendship', which I think amazed her because everyone said I would demand a big settlement," Ferguson said (via Express).

"But I wanted to be able to say, 'Her Majesty is my friend’, not fight her nor have lawyers saying, 'Look, she is greedy'," Ferguson added. "I left my marriage knowing I'd have to work."

In related news, Prince Philip had not forgiven Ferguson yet. In fact, they were avoiding each other when they both visited the Queen in Balmoral. However, according to a recent report, the two are willing to "bury the hatchet" for Princess Eugenie's royal wedding.