Prince Harry celebrated his 38th birthday with wife Meghan yesterday in what's been a difficult week.
Harry and William have appeared to put their family feud aside as they came together to mourn the loss of his grandmother, the Queen.
The pair were seen in the UK for the first time since the late monarch's Platinum Jubilee in June when they joined William and Kate, the Prince and Princess of Wales, for a walkabout at Windsor Castle over the weekend.
They greeted thousands of well-wishers who had gathered to pay their respects to Queen Elizabeth II who died last Thursday at the age of 96.
Earlier today, on a walkabout at the Sandringham Estate, William insisted to the crowds he had not forgotten his brother's birthday, the Sun reports.
William was the one who invited the Duke and Duchess of Sussex to the Windsor walkabout in an olive-branch gesture to the pair, who have moved their life overseas with their children Archie and Lilibet.
The new Prince of Wales and Harry were also seen marching together during the poignant and sombre procession in the capital yesterday.
They were later joined at Westminster Hall, where the Queen is lying in rest, by Kate and Meghan.
William told the crowds earlier that he had not forgotten his brother's birthday, with Harry celebrating privately with his wife.
“It is his birthday today - you’re absolutely right, it is," he said to one.
When he was asked if he'd forgotten, he laughed: “No, I’ve not forgotten.”
Harry and Meghan were not at William's Adelaide Cottage home in Windsor, it's understood, although exactly how they celebrated it remains largely unknown.
Meanwhile, it's thought William and Harry sat down for dinner together after receiving the Queen’s coffin at Buckingham Palace this week.
The royal brothers have long been reportedly estranged from one another since Harry’s split from the Royal Family two years ago.
But after they received Her Majesty’s coffin Tuesday evening, reports surfaced claiming the brothers, along with Kate and Meghan , sat down for a family meal.
The intimate get-together is thought to have taken place at Buckingham Palace.
Before the dinner, the Sussexes joined the working royals at Buckingham Palace to receive the coffin from Scotland.
The couple looked sombre as they drove past thousands of mourners in a black car, where the Queen’s coffin was being transported by a hearse.
And Prince Harry will wear his military uniform on Saturday in a special tribute to the Queen.
The Duke of Sussex has been given special permission to don his military colours for a lying-in-state vigil staged by Her Majesty’s grandchildren at Westminster Hall.
The Queen’s eight grandchildren, including Harry and his brother Prince William, will stand on Saturday evening in silence for a 15 minute vigil alongside Her Majesty’s coffin.
Palace officials are understood to have intervened after it emerged his disgraced uncle Prince Andrew, also no longer a working royal, had been given special permission to wear his uniform at a vigil over the Queen’s coffin attended on Friday by her four children, despite being banned at earlier ceremonial events.