Princess Eugenie, the youngest daughter of former prince Andrew Mountbatten-Windsor and Sarah Ferguson, is pregnant with her third child. "Her Royal Highness Princess Eugenie and Mr. Jack Brooksbank are very pleased to announce that they are expecting their third child together, due this summer," Buckingham Palace said in a statement to Us Weekly on Monday, May 4. Eugenie, 36, already shares sons August and Ernest with husband Jack. The statement continued, "August (aged 5) and Ernest (aged 2) are also very excited to have another sibling join the family.