Princess Anne faced vocal criticism regarding her brother Andrew Mountbatten-Windsor during an official engagement at Oxford University this week.

The royal, positioned 18th in the order of succession, was present at the Agricultural Economics Society’s 100th anniversary gathering in the city at Wadham College on Tuesday (March 24).

According to GB News, the princess was approached by demonstrators as she emerged from a dark-coloured vehicle.

Campaigners called out inquiries to her concerning her sibling’s association with convicted sex offender Jeffrey Epstein.

A critic was heard shouting at Anne, questioning how long she had been aware of Andrew and Epstein’s relationship.

Another individual demanded to know what she had discovered and when she had learned it.

A third individual stated that she should provide an answer to the question.

The Princess Royal offered no response to those protesting and continued walking toward the college entrance accompanied by security personnel.

The demonstration was organised by the Republican group Republic, which subsequently shared footage of the interaction on the internet.

The campaign group drew attention to accounts portraying Princess Anne as supportive of Andrew Mountbatten-Windsor despite the serious accusations made against him.

In a statement accompanying the post, Republic commented that Anne had faced questioning in Oxford regarding the Andrew controversy, noting she had been depicted as sympathetic toward Andrew in light of the allegations and questioning whether she would address the matter.

Andrew Mountbatten-Windsor has repeatedly rejected any misconduct, and there is no indication that Princess Anne has acted improperly.