The institutionalization of the Bowes-Lyon sisters, Katherine (Trudie Emery) and Nerissa (Pauline Hendrickson), had nothing to do with the Crown. John "Jock" Bowes-Lyon, the brother of Elizabeth, future Queen Mother (Marion Bailey), died six years before Edward VIII's abdication, and they were placed in the Royal Earlswood Hospital by their mother Fenella in 1941, five years after King George VI ascended the throne. Princess Margaret (Helena Bonham Carter) played no part in discovering the sisters' existence, nor did she confront her mother on the subject.