The official occasion will be held at Buckingham Palace, bringing together many British royal family members, including the Queen, Prince William, Kate Middleton, Prince Harry and Megan Markler, as well as royals from Belgium, Denmark and Norway.

The Duchess of Cambridge, Catherine, looks beautiful in her pink dress to celebrate her father-in-law. She is paired with shiny earrings, a pair of earrings she used to pass for official events. See another photo she arrived:

The Duchess Kate arrived with Prince William, and Prince William wore a delicate evening gown for this occasion. Prince Charles officially became 70 years old today. This is a milestone and a series of events are celebrated throughout the year. Back in late May, Charles held a garden party at Buckingham Palace to start his birthday celebration with various sponsorships and military relations. The Prince of Wales participated in the event with Camilla, the Duchess of Cornwall and the Dukes and Duchess of Sussex:

Charles is also the subject of a new BBC documentary called Prince, Son and Heir: 70-year-old Charles commemorates his birthday. The documentary includes interviews with the prince himself and family members like Will and Harry.

Just yesterday, the royal family released a series of portraits to commemorate Charles’s milestone birthday. Charles and Camilla, William, Kate, Harry, Megan and his three grandchildren, Prince George, Princess Charlotte and Prince Louis. The sweet family photo was taken by Chris Jackson at Clarence House in September. See these two photos here: