The lives of the sons of Eleanor of Aquitaine are the stuff of legend. Her daughters, however, are less well known, and the fascinating personalities of her daughters-in-law have been almost entirely overlooked, as have those of the daughters she bore Louis VII of France. The Families of Eleanor of Aquitaine redresses this balance and showcases the lives, travels and careers of these ten very different women, who formed a great international network of political alliances that linked their parents, their siblings, their husbands and their children all across Europe and the Holy Land. Some of these women found happiness; others endured lives of turmoil and conflict. Some of them were close; others never met. But two things linked them all: their connection to Eleanor and to the kingdoms over which she reigned; and their determination to exert authority on their own terms in a male-dominated world.

When William the Conqueror died in 1087 he left the throne of England to William Rufus his second son. The result was an immediate war as Rufus's elder brother Robert fought to gain the crown he saw as rightfully his; this conflict marked the start of 400 years of bloody disputes as the English monarchy's line of hereditary succession was bent, twisted and finally broken when the last Plantagenet king, Richard III, fell at Bosworth in 1485. The Anglo-Norman and Plantagenet dynasties were renowned for their internecine strife, and in Lost Heirs we will unearth the hidden stories of fratricidal brothers, usurping cousins and murderous uncles; the many kings - and the occasional queen - who should have been but never were. History is written by the winners, but every game of thrones has its losers too, and their fascinating stories bring richness and depth to what is a colourful period of history. King John would not have gained the crown had he not murdered his young nephew, who was in line to become England's first King Arthur; Henry V would never have been at Agincourt had his father not seized the throne by usurping and killing his cousin; and as the rival houses of York and Lancaster fought bloodily over the crown during the Wars of the Roses, life suddenly became very dangerous indeed for a young boy named Edmund.