Princess Alexandra has withdrawn at short notice from a Westminster concert honouring her late sister-in-law, Katharine, Duchess of Kent
The Court Circular had listed the 89-year-old royal as attending the Future Talent event at Sinfonia Smith Square, but she was unable to take part
The decision has prompted concern, as Alexandra has made few public appearances in recent months and is due to turn 90 on Christmas Day
Hosted by Alexander Armstrong, the concert was attended by The Duke of Kent and Prince Michael of Kent.