Even the royals can’t resist a good GNO.

Photo: Dave Benett/Getty Images for Estée Lauder

Just a few days after stepping out for the Centerpoint Awards in London to support their cousin Prince William, Princess Diana’s nieces, Lady Eliza Spencer, Lady Kitty Spencer, and Lady Amelia Spencer were back on the social scene with another royal relative. The trio attended the Estée Lauder Re-Nutriv Dinner hosted by legendary department store Harrods and rubbed shoulders with some of the biggest names in fashion and their pal Princess Beatrice.

The Spencer trio arrived dressed to impress, with Kitty looking like a bombshell in a fitted black strapless dress with a sculptural bodice. She finished the look with a show-stopping pear-shaped diamond necklace. Her twin sisters, Eliza and Amelia, opted for a red sequin dress with strong shoulders and a sweetheart neckline (that’d be Eliza) and a black polka-dot LBD with a blingy Peter Pan collar and sheer long sleeves (Amelia). The sisters are the daughters of Princess Diana’s younger brother, Charles, and his first wife, Victoria Lockwood.

Dave Benett/Getty Images for Estée Lauder

The event was hosted by the Lauder family’s Aerin Lauder as well as models Carolyn Murphy and Bianca Brandolini. It was held at The Orangerie, which is located right next to Kensington Palace, and happens to be the childhood home of King Charles.

Dave Benett/Getty Images for Estée Lauder

Princess Beatrice attended the dinner wearing a black gown with bow details on the bodice and a subtle keyhole between the shimmering embellishments. The York sister is currently pregnant with her second child. She has a daughter named Sienna and a stepson nicknamed Wolfie, whom she and her husband, Edoardo Mapelli Mozzi, share with his ex, Dara Huang.