Queen Elizabeth said on Tuesday the British royals were saddened by the challenging experiences of her grandson Prince Harry and his wife Meghan and promised to privately address revelations about a racist remark about their son. Meghan and Harry’s tell-all TV interview with Oprah Winfrey aired on U.S. television on Sunday has plunged the monarchy into its biggest crisis since the 1997 death of Harry’s mother Diana. In the two-hour show, Meghan accused Britain’s royal family of raising concerns about how dark their son Archie’s skin might be and ignoring her pleas for help while she felt suicidal.