The Duke of Edinburgh’s coffin was carried to the chapel in a Land Rover hearse, which was designed by the duke himself, and escorted by senior royals on foot on Saturday.
Music and marches were performed ahead of the funeral by guards and members of the military as guests arrived at the chapel.
After a national minute silence, royal family members were pictured seated at a distance from one another wearing masks in St George’s Chapel for the service.
The Queen, dressed in black, sat alone as she bade a final farewell to her husband of 73 years.
Here are some of the funeral’s key moments in pictures.
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1. Duke of Edinburgh's coffin
The Duke of Edinburgh's coffin, covered with his Personal Standard, is carried into St George's Chapel, Windsor Castle, Berkshire, ahead of the funeral of the Duke of Edinburgh.
Photo: Arthur Edwards/The Sun
2. Prince Andrew
Sombre figure cuts Prince Andrew at the Duke of Edinburgh's funeral in St George’s Chapel, Windsor Castle. It was the Duke of York's first official royal appearance since stepping back from his duties in 2019.
Photo: Yui Mok
3. Prince Harry and Prince William
Prince Harry and Prince William walked in the procession ahead of the funeral service, following the Duke of Edinburgh's coffin which is being carried to St George's Chapel in a Land Rover.
Photo: Victoria Jones
4. Queen Elizabeth II
The Queen cut a lonely, mournful figure as she wiped away tears in St George’s Chapel during the Duke of Edinburgh’s funeral on Saturday.
Photo: Yui Mok