Kate Middleton and Prince William have a new niece! William’s brother, Prince Harry, and his wife, Meghan Markle, welcomed their second child together over the weekend. And the Duke and Duchess of Cambridge are “delighted.”

ICYMI: On Sunday, the Duke and Duchess of Sussex announced that they welcomed a baby girl named Lilibet “Lili” Diana Mountbatten-Windsor.

The news was shared with a message from the royal couple on their Archewell website that read, “On June 4th, we were blessed with the arrival of our daughter, Lili. She is more than we could have ever imagined, and we remain grateful for the love and prayers we’ve felt from across the globe. Thank you for your continued kindness and support during this very special time for our family.”

Following the exciting news, William and Middleton posted a statement of their own on their joint Instagram account, @thedukeandduchessofcambridge.