Beatrice then took to Twitter to write a more informal tweet, alongside a photo of the pair. "I'm so excited to announce my engagement to Edo," she wrote.
Beatrice's sister Princess Eugenie, who wed at St George's Chapel, Windsor Castle in October 2018, posted her congratulations on Instagram, saying: "Beabea - wow! I'm so happy for you my dearest big sissy and dear Edo. It's been a long time coming and you two are meant to be. (camera emoji) by me!! "
Following the news, other members of the royal family took to social media to send their congratulations. See what they wrote below.