She-Wolves by Helen Castor is a fascinating, true account of how royal power came to lie female hands thanks to the influence of four women: Matilda, Eleanor of Aquitaine, Isabella of France and Margaret of Anjou. As seen on the BBC documentary series.

In medieval England, man was the ruler of woman, and the King was the ruler of all. How, then, could royal power lie in female hands?

In She-Wolves, celebrated historian, Helen Castor, tells the dramatic and fascinating stories of four exceptional women who, while never reigning queens, held great power: Matilda, Eleanor of Aquitaine, Isabella of France and Margaret of Anjou. These were women who paved the way for Jane Grey, Mary Tudor and Elizabeth I - the Tudor queens who finally confronted what it meant to be a female monarch.