Anne Frank and Eva Schloss, whose surviving parents, Otto Frank and Elfriede Geiringer, eventually married. Had Anne survived the holocaust, she and Eva would have been stepsisters.
Amelia Earhart disappeared in 1937 but what actually happened to her is still a mystery. Her story and achievements however still captivate, thanks in no small part to her younger sister Muriel. Their bond, forged in childhood and tested in adulthood, could not be broken by death.
The Mitfords were six, witty, eccentric and beautiful sisters. For two, their personal lives strayed into the political: Diana the fascist and Jessica the communist. But they were also shaped by experiences more familiar to us all – the trials and joys of family, of love, of grief, and of sisterhood.
Jackie Kennedy Onassis remains to this day iconic, a figure of high fashion and tragedy. Her sister Lee however is less well-known. Yet it is impossible to understand one without the other, their lives were intertwined – through rivalry and resentment, love and loss.
The fascinating relationship between two British royal sisters comes under the microscope. Elizabeth is a mature, serious child with a love of dogs and horses. Meanwhile, her sister Margaret, four years younger, was a very different character - cheekier, mischievous, extrovert. How have these sisters and their relationship shaped the British monarchy?
Anne has been celebrated and damned, seen as either schemer or a victim. Her sister Mary is less remembered and often dismissed as a fool. But what was the truth?
Mary was a short-lived, little-favoured Catholic and Elizabeth a long-reigning, all-admired Protestant. However, Henry VIII's daughters have more in common than meets the eye.
The final episode focuses on the tense relationship between suffragette leaders Christabel and Sylvia Pankhurst, who had very different ideas on the struggle for equality.
