As the only two official blood princesses of their generation, Princesses Beatrice and Eugenie have had more unique shared experiences than most sisters. Beatrice was the maid of honour at Eugenie's 2018 wedding, notably giving a reading from The Great Gatsby during the service.
The sisters are very close and probably know each other better than anyone. In a 2008 interview with The Telegraph, Princess Eugenie explained how she and her older sister are alike and different.
"I am definitely not as polite as Beatrice, I have to say. I tell it as it is. I am shyer at first," Princess Eugenie said. "Like, at a party I will say to Beatrice as we go in, 'Oh, you go first.' But then, when we're actually in, I am much louder and she is far more polite and solicitous."
"We get on fantastically well, perhaps because we do and think different things," she continued. "It's quite funny how, like most sisters, we sometimes fight about clothes . . . Like all sisters, we have silly arguments about unimportant stuff, but we do love each other to death."