The Duke of Sussex called his brother his "beloved brother and arch-nemesis" in "Spare."
The Prince of Wales travelled to Boston last year in November for the Earthshot Prize Awards ceremony.
The "James Bond" actor and his wife Rachel Weisz did not stand from their seats to greet the Princess of Wales.
A video shows His Majesty seemingly losing his patience as he waited for his wife to step out of their vehicle.
His Majesty shared a throwback photo taken during a holiday with his sons in Balmoral.
Nicky Phillipps made the painting during the happier times in 2010 when the brothers were still close.
The Duke and Duchess of Sussex celebrated their daughter's first birthday in the U.K. with a picnic on the grounds of Frogmore Cottage.
The Prince of Wales was caught on video telling his wife to wrap up her conversation with the bride.
The Prince of Wales and the Duke of Sussex are believed to no longer be on speaking terms with each other.
Monday was declared a public holiday to mark the final day of celebrations -- meaning people could enjoy Sunday unencumbered.
The late Queen Elizabeth would be "very proud" of King Charles on his coronation, his son William said on Sunday as he celebrated his father at a concert at Windsor Castle, and Britons held thousands of street parties in the king's honour.
The Princess of Wales said her children are "very excited" about their grandfather's coronation.
Britain last held a coronation in 1953. Charles's mother Queen Elizabeth II wore an intricately embroidered white satin gown on the day.
Amid the cost-of-living crisis and public servants striking for increased wages, the Coronation of King Charles is expected to cost UK taxpayers over £250m.
The Prince of Wales will pledge his loyalty to His Majesty during "The Homage of the Royal Blood" ceremony.
Queen Elizabeth knew that Rupert Murdoch's UK newspaper arm had been spying on her family and their friends, and authorised her staff to "draw a line" under the issue, according to an email released on Thursday in a lawsuit by her grandson Prince Harry.
The Duke of Sussex served the British Armed Forces for ten years and deployed to Afghanistan twice.
Prince William has long been known to be an Aston Villa supporter.
Prince Harry admitted in an interview earlier this year that he is no longer on speaking terms with Prince William.
The eldest son of Prince William and Kate Middleton will join His Majesty during the procession through Westminster Abbey.
Andrew Morton said Princess Diana never called her second son a "spare" but a "backup in the nicest possible way."
Prince William is next in line to the British throne followed by his son Prince George with the Duke of Sussex fifth.