After years of keeping her distance, Sarah "Fergie" Ferguson will once again be reunited with the royal family of her ex-husband Prince Andrew as they all gather for her their daughter Eugenie's wedding.
But Camilla's surprise absence is reportedly not down to a snub or any bad blood between the royal pair but more a case of clashing diaries.
According to royal commentator Victoria Arbiter, Prince Charles's wife can't make it because she has already agreed to attend another engagement.
Speaking to Britain's The Sun, one source close to the situation said, "When this date was proposed, she said that regrettably, she couldn't come. She will have spoken to Eugenie about it".
There was also speculation that Kate Middleton would not be able to attend the wedding, as her sister Pippa Middleton is expected to give birth to her first child any day now.
The royal beauty rebel likes to have fun with her nails on special occasion-sporting a Union Jack manicure for the Jubilee in 2012 and a Christmas-inspired manicure (complete with a cute reindeer!) back in 2015 to have a holiday lunch with the Queen.
She'll be creating a red velvet chocolate cake, described as a "traditional cake, with a modern feel".
The statement from Buckingham Palace said Eugenie and Jack were "delighted" that Cabot was involved in the celebration of their nuptials.