Watch: Prince Philip Remembered on 100th Birthday
Prince Charles has shared a childhood photograph with his father as the Royal Family mark what would have been Prince Philip's 100th birthday.
Clarence House shared two pictures on Instagram on 10 June, when the Duke of Edinburgh would have reached his centenary, including one of a young Charles meeting his father off a ship after a trip to Malta.
They also shared a picture of him from July 2020, during the transfer of Colonel-in-Chief of the Rifles, the position he gave over to his daughter-in-law Camilla.
The post read: "Remembering The Duke of Edinburgh, on what would have been his 100th birthday."
Princess Eugenie, Charles's niece, also shared a picture and marked the day in a short tribute.
She shared a picture of the Queen and Philip at her wedding in 2018 and wrote: "Thinking of Grandpa on what would have been his 100th birthday."
One of those to comment below was singer Ellie Goulding, a friend of the royals, who shared a love heart emoji.
William and Kate said they were also remembering the duke, and posted pictures of the Queen receiving a Duke of Edinburgh rose, which was newly bred in Philip's honour after his death in April.
Princess Anne and Prince Edward, Philip's only daughter and youngest son respectively, gave interviews remembering their father, with Anne saying there was more to him than people knew.
She told ITV: "There were not many people who understood just how broad his interests were and how supportive he was to an astonishingly wide range of organisations. His perspective was really important."
She added: "He probably asked more questions than he gave opinions. He was always good at that."
Watch: Edward admits to 'staying way out of' royal rift
Prince Edward said the Queen is doing "remarkably well" considering losing her husband of 73 years, and said the easing of COVID-19 restrictions had helped them fill the void of his death.
He told CNN: "Things are beginning to open up more, there are more activities, so weirdly that sort of fills any particular void.
"I think there are going to be other times further on in the year where I think that it will become a bit more poignant and a bit harder, but at the moment… I think that everybody’s in pretty good shape really."
Camilla spent time on Thursday morning at the Garden Museum in London where she toured a new exhibition and met volunteers from Floral Angels, which takes donated flowers from events and gives them to hospices, shelters and care homes in London.
This week is particularly poignant for the Duchess of Cornwall as 11 June is the anniversary of the death of her father, Major Bruce Shand.
She said: "I’m very honoured to be here, to be doing something I know they both would have appreciated."
She was given a bunch of flowers which included rosemary, a sign of remembrance.
The Queen has been keeping up engagements and work since the end of royal mourning, which lasted for two weeks after Philip's death on 9 April.
She is set for a busy weekend as Saturday will see her mark her official birthday with the scaled back version of Trooping the Colour, held at Windsor Castle.
And on Sunday she will meet US president Joe Biden for the first time as she hosts him and his wife Jill at the castle for tea.