Jill Biden arrives at King Charles III's coronation
First Lady Jill Biden arrived at the coronation ceremony for King Charles III, wearing a periwinkle blue Ralph Lauren skirt suit accessorized with a coordinating hair bow.
Watch video of Jill Biden's arrival in the player above.
Biden was accompanied by her granddaughter Finnegan Biden in a chic pale yellow cape dress by Markarian, in what could be seen as a sartorial nod to show solidarity with Ukraine.
Inside the Abbey, the pair were seated next to Ukrainian First Lady Olena Zelenska in an icy blue dress and coat pairing.
President Joe Biden has dispatched his wife to represent the United States at the coronation at Westminster Abbey. No American president has ever attended a British coronation.
After the ceremony, Jill Biden will attend a reception hosted by U.S. Ambassador Jane Hartley. She will also mingle at a luncheon Sunday hosted by Sunak and Murty at their Downing Street residence before her flight back to Washington.
President Biden has received some criticism for skipping the coronation, though the White House cites the precedent of a U.S. president never attending for his decision.
But the president and Charles are hardly strangers. They have chatted each other up at global climate events since Biden took office, and during the queen's funeral last year. They also spoke in April when Biden called to say he was sending the first lady to the coronation, and the president expressed interest in meeting with the king in the United Kingdom at a future date, the White House said at the time.
First ladies often stand in for presidents when they can't be present.
“I love seeing the first lady as our representative and I would have been thrilled for any first lady to attend,” said Lindsay Reynolds, who was first lady Melania Trump's White House chief of staff. “I don't think it is a slight in any way for the president to not be attending.”
Jill Biden was just 2 years old when Charles' mother, Elizabeth, was crowned in June 1953. The queen held the throne for seven decades until her death last September at age 96.
The first lady tweeted before her flight Thursday that "it's an honor to represent the United States for this historic moment and celebrate the special relationship between our countries.”
CNN contributed to this story.