The Duchess of Edinburgh was selected for a major event ahead of other royals after she supported Princess Kate.
Duchess Sophie, 59, led the Armistice Service at the National Arboretum without her Husband, Prince Edward,60, for the first time on Monday.
The Duchess attended commemorations in Staffordshire, marking the two minutes silence across the UK and Europe.
A different member of the Royal Family represents the monarchy for the Armistice Service, with Sophie last attending accompanied by Prince Edward in 2020.
The Duchess of Edinburgh was selected for a major event ahead of other royals after she supported Princess Kate.
PA
The event, attended last year by the Princess Royal and Sir Tim Laurence, is held on November 11, the date the First World War ended, now known as Armistice Day.
It follows the Remembrance Sunday Service at the Cenotaph where Sophie accompanied the Princess of Wales on the Foreign, Commonwealth and Development Office balcony to witness King Charles leading the nation in paying respect with a two-minute silence.
During the service, Sophie was seen comforting Princess Kate, who undertook royal duties for the second consecutive day.
The future queen attended the Festival of Remembrance at the Royal Albert Hall on Saturday evening alongside her husband, Prince William.
Sophie, dressed in all black and with three poppies pinned to her coat, spoke with British military veterans after her service.
PA
It was the first time the Princess of Wales made back-to-back appearances since she temporarily stepped back from duties following her cancer diagnosis in March earlier this year.
The Duchess looked visibly emotional as she reflected on the lives of the servicemen and women of the armed forces, whose names were displayed on the memorial.
Sophie, dressed in all black and with three poppies pinned to her coat, spoke with British military veterans after her service.
The Duchess took to the podium to deliver a reading of For the Fallen by late 19th century poet Laurence Binyon, before placing a wreath at the memorial.
The Duchess took to the podium to deliver a reading of For the Fallen by late 19th century poet Laurence Binyon
PA
The poem concludes with the familiar lines: “As the stars that shall be bright when we are dust,
“Moving in marches upon the heavenly plain;
“As the stars that are starry in the time of our darkness,
“To the end, to the end, they remain.”
