Why did crown princess Margaret of Sweden die in 1920?

Crown Princess Margaret of Sweden died on January 4, 1920, primarily due to complications from pneumonia, which she developed after a prolonged illness. She had been suffering from various health issues for several years, including a serious case of tuberculosis. Her death marked a significant moment for the Swedish royal family, as she was beloved by the public. Margaret's passing also highlighted the challenges faced by royals in maintaining health during that era.