Yes, 10 siblings, including Princess Augusta, Duchess of Brunswick, Prince Edward, Duke of York and Albany, Princess Elizabeth of Great Britain, Prince William Henry, Duke of Gloucester and Edinburgh, Prince Henry, Duke of Cumberland and Strathearn, Princess Louisa of Great Britain, Prince Frederick of Great Britain, Caroline Matilda of Great Britain, FitzFrederick Cornwall Vane (Half-sibling), and Amelia Vane (Half-sibling)