Prince Andrew has officially become persona non grata within the royal circle.
The Duke of York, 64, was sensationally excluded from the royal dinner held at Windsor Castle last week – despite staying at the Royal Lodge, which is located on the grounds of the residence.
The dinner, hosted by Princess Anne last Thursday, was in honor of Andrew's alma mater Gordonstoun, which he attended with his brothers King Charles and Prince Edward, the Daily Mail reported.
As a school keeper, the Princess Royal, 74, held a lavish reunion at Windsor, but her scandal-plagued brother was not in attendance.
“I'm sure the Duke would have loved to attend the dinner if he had been invited,” a royal insider told the outlet.
Although Anne did not personally enroll in the $75,000-a-year institution, she and her first husband, Captain Mark Phillips, sent their children, Peter Phillips and Zara Tyndall, there.
A school spokesperson said: “In her role as warden of Gordonstoun, Her Royal Highness hosted an intimate evening dinner attended by a small number of guests.”
The Post has contacted Buckingham Palace for comment.
The brutal snub comes just days after the disgraced former working prince was reported to police and accused of using a fake name to register a company.
Andrew used the alias Andrew Inverness in 2003 when he joined forces with sports retail mogul Johan Eliach to found a company called Naples Gold Limited.
The king's younger brother, who owned four companies linked to those registered on the UK's public companies register under that name, was described as an “advisor” on official forms, documents obtained by The Post show.
Since then, an anti-monarchy campaign group called Republic has accused the former serving prince of forging official documents and has lodged a formal complaint with Scotland Yard, which polices much of London.
The Metropolitan Police are currently determining whether any further action is needed against the Duke.
The controversy came hot on the heels of another shock, as the financial company managing Andrew's private investments was sensationally shut down.