Prince William and former New Zealand Prime Minister Jacinda Ardern had a giggly moment together during the ceremony in which he made her a dame. Ardern has been working with William as a trustee of his Earthshot Prize, which awards $1 million grants to scale up projects acting to repair, maintain and preserve the environment.

Ardern said it was “particularly special” to receive the honor on Oct. 16 from Prince William, whom she works with in support of his Earthshot Prize initiative

Prince William has presented former New Zealand Prime Minister Jacinda Ardern with a damehood, who he works with in support of his Earthshot Prize initiative. Ardern described the occasion as "particularly special" when she received the award on Wednesday.

It was a rare appearance for the Spencer sisters at the special event, which had a connection to both Princess Diana and Prince William

Princess Diana's nieces, Lady Kitty Spencer, Lady Eliza Spencer and Lady Amelia Spencer, joined Prince William at an event in London on Oct. 16