Sarah Ferguson has not received an invite from King Charles to attend his Coronation on May 6, it has been reported.It is claimed that King Charles snubbed his former sister-in-law, despite her still sharing a home with his brother Prince Andrew and seemingly being welcomed back into the royal fold.It means that Fergie will not join her daughters Princess Beatrice and Princess Eugenie, who are both nieces of the King, in Westminster Abbey for the historic event next month, reports the Mirror.It comes following the news that Prince Harry will attend the ceremony at Westminster Abbey but Meghan Markle will stay in California with their children Prince Archie and Princess Lilibet.According to The Independent, Fergie, who shared a close relationship with the late Queen and now looks after her corgis Sandy and Muick, will have to watch proceedings from home.A source told the publication: "She has been hugely supportive of Charles and Camilla and does not want this to become about her."The whole day is about the new King and the success of his reign but she has always championed the royal family and the Queen undoubtedly would have wanted her to be there."In March while at an event in New York to promote her latest romance novel, Fergie was asked about her plans for the Coronation after admitting she had not yet received an invitation.But she shrugged it off and told of what she will be doing instead if she is not picked to be inside Westminster Abbey.She explained: "Well I've decided the best thing about being British around a coronation - although I've never been to one - I think we should, I should set up a tea room at the bottom of the drive with bunting and cakes."Meanwhile, earlier this month during an appearance on ITV