Charles Spencer, brother of Princess Diana, has apologized for a factual error in his memoir about his late sister, but Piers Morgan remains determined to pursue legal action. The book, titled *Swan Song: Diana, My Sister*, has sparked controversy with its claims about the royal family. Spencer, who is also known as Earl Spencer, admitted the mistake and emphasized the importance of accuracy as a historian. Despite his apology, Morgan has stated he will continue with his lawsuit, which alleges the book contains false information. The publisher, Penguin, has confirmed it will correct the error in future editions. The memoir, released recently, has already caused a stir in the UK monarchy, with some of its revelations challenging established narratives. The book, which spans Diana's life from Spencer's perspective, was published nearly three decades after her tragic death in a 1997 car crash in Paris.