Lady Louise Alice Elizabeth Mary Mountbatten-Windsor (born 8 November 2003), generally known as Lady Louise Windsor, is the elder child of Prince Edward, Earl of Wessex and Forfar, and Sophie, Countess of Wessex and Forfar, both members of the British royal family. She is a granddaughter of Queen Elizabeth II and Prince Philip, Duke of Edinburgh. A niece of King Charles III, Lady Louise Windsor is 15th in the line of succession to the British throne as of 8 September 2022.[2]