The Duchess of Kent, who preferred to be known simply as Katharine Kent, has died aged 92, Buckingham Palace announced. The palace said she died peacefully at her home, Wren House at Kensington Palace, surrounded by her family late on Thursday night.

A palace statement said: "The King and Queen and all members of the Royal Family join the Duke of Kent in mourning the loss and remembering fondly the duchess's life-long devotion to all the organisations with which she was associated, her passion for music and her empathy for young people." The statement gave no cause of death; friends said she had been unwell for "some time."

The duchess had been the oldest living member of the Royal Family since the death of the late Queen, the palace said. She was the wife of the Duke of Kent, a grandson of King George V and a first cousin to the late Queen Elizabeth.

Known within the family and among close associates as Katharine Kent, she stepped back from public duties and relinquished the use of her HRH style when she converted to Catholicism. Commentator Rebecca English described her as a trailblazer "before the term was even invented," noting that much of her influence was exercised quietly and behind the scenes.

Members of the royal family and officials paid tribute to the duchess's long-standing commitments. The palace highlighted her dedication to musical causes and to organisations supporting young people, and said the family would remember her devotion and empathy.

Her private life and choices after her withdrawal from active royal duties attracted public interest. She retained the affection and respect of family members even after stepping back from public roles, the palace added. Details of funeral arrangements were not announced in the initial statement.

The duchess's death marks the loss of a senior royal figure whose personal faith and decision to limit public engagement distinguished her later years. Observers noted that throughout her life she combined public charitable work with a preference for a lower public profile.

Further statements from the royal household and details about commemorations are expected to follow as the family notifies close relatives and the organisations with which she was associated. Media commentators and royal correspondents have begun reflecting on her life in columns and reports, noting both her public commitments and her private, behind-the-scenes influence.