Princess Diana 's nieces have definitely inherited their royal aunt's enviable sense of style, as their looks on Wednesday, Oct. 16, proved. Lady Kitty Spencer and her twin sisters, Amelia and Eliza Spencer, hit the red carpet in coordinating icy blue gowns to support cousin Prince William at the Centrepoint Awards in London.

Princess Diana introduced both of her sons, Prince William and Prince Harry, to the need to eradicate homelessness when they were boys. The Prince of Wales continues to work towards this effort by partnering with Centrepoint for its annual awards ceremony,

Last night, Prince William had another royal event on his calendar: the Centrepoint Awards at the British Museum. The organization is near and dear to his heart—and his late mother Princess Diana's—as it works to help homeless youth in the United Kingdom.

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.