A recurring theme over the first three seasons of Netflix’s Emmy-winning program, “The Crown,” is the familiar old adage that history repeats itself. And, despite the knowledge of their past misfortunes, Britain’s Royal Family continues to fail spectacularly at avoiding embarrassment in the public eye. If you’re looking for a recent example, you only need to see how they handled the racist treatment of Meghan Markle. In fact, even before she became sovereign at the age of 25, Queen Elizabeth II (portrayed currently by Olivia Colman) and her husband, Prince Philip (Tobias Menzies), had witnessed these cycles repeat themselves again and again. The fourth season of the Peter Morgan shepherded series begins to chronicle perhaps the family’s greatest tragedy of all, the relationship between Lady Diana Spencer (Emma Corrin) and Prince Charles (Josh O’Connor). The surprise this season, however, isn’t Corrin’s at times heartbreaking performance, but that Gillian Anderson’s portrayal of another prominent figure of the era, Prime Minister Margaret Thatcher, somehow overcomes the supernova of Diana’s still-cherished moment in history.