Princess Diana's infamous 1995 interview reportedly brought up a barrage of feelings for Prince William. William, now 43, was 13 years old when his mother sat down for a tell-all on BBC's Panorama, revealing the alleged details of her then-husband King Charles III's years-long affair with the now-Queen Camilla. Royal biographer Robert Lacey claimed in a resurfaced excerpt from his 2020 book, Battle of Brothers, that William watched the interview from his housemaster's office at Eton College.