The programme will include interviews with Basil Charles, former owner of Basil’s Bar on Mustique, where the princess had a holiday home. There will also be contributions from Lady Anne Glenconner, a childhood friend and later lady-in-waiting, and Craig Brown, who catalogued the princess’s celebrated rudeness in a recent biography…. The BBC is to explore the private life of Princess Margaret in a new documentary series, after Vanessa Kirby’s sympathetic portrayal in The Crown led to a reappraisal of the Queen’s troubled younger sister. Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings. “She was a trailblazer, she was a little bit of a rebel. She wanted to have the [royal] life but she also wanted to have a normal life,” Charles tells the programme.