The new instalments of Netflix royal drama The Crown sees Princess Margaret face an uphill battle for her health. In the seventh episode of the fourth season, entitled The Hereditary Principle, Princess Margaret (Helena Bonham Carter) finds her health taking a turn for the worse.
Her persistent drinking and cigarette smoking catches up with her when she begins to cough up blood while dining with her sister, The Queen (Olivia Colman).
Later in the episode, Margaret undergoes lung surgery to have part of the organ removed. In the same episode, after discussions with her close friend and civil servant Derek 'Dazzle' Jennings (Tom Burke), Margaret attends therapy with Penelope Carter (Gemma Jones).
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