Again, the Netflix series is somewhat accurate here. Season two details Prince Philip’s (Matt Smith) borderline traumatizing childhood, which—contrary to popular belief—is based on true events. Not only was Philip smuggled out of Greece when he was a child, but he also lived with several relatives after his mother, Princess Alice (Jane Lapotaire), had a nervous breakdown
There are other elements—like Princess Cecilie’s death—that have been dramatized for television. You see, Prince Philip didn’t actually cause the death of his sister, Princess Cecilie (Leonie Benesch), who died in a tragic plane crash.
In the show, the prince is low-key blamed, since Cecilie booked a flight to London as a result of Philip getting in trouble at school. But according to royal historian Hugo Vickers, the plot is inaccurate. While Cecilie did die in a plane crash in 1937, her trip to London to attend the wedding (and see Philip) was planned all along.
“There was no fight, almost certainly no half-term, and Prince Philip would not have gone to Germany anyway,” he told Vogue. “His sister was always coming to the wedding.”