William Marshal’s prowess and loyalty as a knight in the English royal household has been rewarded by marriage to Isabelle de Clare, heiress to great estates in England, Normandy and Ireland. But their contentment and security is shattered when King Richard dies and is succeeded by his brother John, who takes the Marshals’ sons hostage and seizes their lands.

12th century, England: A penniless young knight with few prospects, William Marshal is plucked from obscurity when he saves the life of Henry II's formidable queen, Eleanor of Aquitaine. In gratitude, she appoints him tutor to the heir to the throne, the volatile and fickle Prince Henry. But being a royal favorite brings its share of danger and jealousy as well as fame and reward.

In England, the Middle Ages are a time for ambitious men to prosper. Before he becomes the father of William Marshal, John FitzGilbert is a man of honor and loyalty, sworn to royal service. When the old king dies, his successor rewards the handsome and ambitious John with castles and lands. But King Stephen has a tenuous hold on his reign over medieval England.

The warm, comfortable family life of young Nesta, daughter of Prince Rhys of Deheubarth is destroyed when her father is killed and she is taken hostage. Her honour is further tarnished when she is taken as an unwilling concubine by King William's ruthless younger brother Henry, who later ascends the throne under suspicious circumstances. Gerald FitzWalter, an ambitious young knight is rewarded for his unwavering loyalty to his new King with Nesta's hand in marriage.

Despite having signed the Magna Carta and made promises to mend his ways, there is still great dissatisfaction with King John's rule. Among the rebellious nobles is young Nicholas de Caen.

An awkward misfit, nine-year-old Fulke FitzWarin leaves his family for the household of Joscelin de Dinan, Lord of Ludlow. Once there, he begins to learn the knightly arts which he desperately hopes will free him from the shadows of his past. Joscelin’s youngest daughter, Hawise, befriends Fulke when he most needs it. But as the years pass, an enemy to Ludlow changes their friendship unalterably, forcing them onto opposite sides of a cruel divide.

A violent quarrel with the future King John destroys the young Fulke FitzWarin’s greatest ambition: to become Lord of the White Castle. Instead of accepting his fate, Fulke rebels. But the danger pursuing Fulke reaches new heights as he begins a passionate love affair with Maude Walter—the wealthy widow chosen by John himself.

1236. Beautiful Ailenor of Provence, cultured and intelligent, is only 13 when she marries Henry III. Aware of the desperate importance of providing heirs to secure the throne from those who would snatch it away, she is ruthless in her dealings with Henry's barons. As conflict escalates between them, Ailenor's shrewd and clever Savoyard uncles come to support her, but her growing political power is threatened when Henry's half-siblings also arrive at court. Henry and Ailenor become embroiled in an unpopular war to protect Gascony, the last English territory on the continent.

Fresh from his defeat of King Harold at the Battle of Hastings, William of Normandy has returned home in triumph, accompanied by the English nobles he cannot trust to leave behind. For Waltheof of Huntington, however, rebellion is not at the forefront of his thoughts. From the moment he catches sight of Judith, daughter of the King's formidable sister, he knows he has found his future wife. When Waltheof saves Judith's life, it is clear that the attraction is mutual. But marriage has little to do with love in medieval Europe.

The Port of Barfleur, 1120. Sabin FitzSimon, disgraced son of an earl, finally has the chance to salvage his reputation when renowned knight Edmund Strongfist asks Sabin to join a journey to Jerusalem. The only thing Sabin must promise is to keep away from Strongfist’s beautiful daughter, Annais. Sabin obeys, but his attraction to Annais’s spirit, courage and her wonderful harp playing become increasingly difficult to resist.

The year is 1173. King Henry's efforts to crush his rebellious sons ignite bloody border skirmishes throughout the land. Yet it is a time of triumph for mercenary Josceline de Gael, bastard son of the king's most trusted ally. Victorious on the battlefield, de Gael suffers sweet defeat when his heart is conquered by the lovely Linnet de Montsorrel. But their love will find its greatest challenge as the torments of jealousy, suspicion, pride—and an enemy from beyond the grave—threaten all they hold dear.

Alexander and Hervi de Montroi, half-brothers with no inheritance, meet in France. Hervi is a professional jouster and Alexander, fleeing the beatings of an English monastery, needs a trade. Despite misgivings, Hervi takes him on as his squire, introducing him to the travelers' immoral lifestyle. He befriends a girl, Monday, taking care of her after her parents die until, pregnant with Alexander's child, she leaves, finding shelter in a castle as a seamstress. Noticed by King John, she becomes his mistress in England, bearing his son and gaining a house.

The year is 1140 and England is torn by the strife of civil war. Oliver Pascal chances upon a village raided by mercenaries and rescues the survivors: an orphaned boy, who is the illegitimate son of the old king, and his mother's maid, a young widow named Catrin. After escorting them to Bristol Castle, they are accepted into the household of Robert of Gloucester and while Catrin finds herself falling in love with Oliver she suffers a deep boredom at the frivolity of court life. Thus when the old midwife Etheldreda offers to teach her the secrets of her ancient art, Catrin agrees.

When a comet appears in the sky over England in 1066, Ailith, a young Saxon wife, feels sure that it can only bode well, in spite of her husband's fears. With a child on its way, the couple are prosperous and content. Yet, within a year, Ailith's joy turns to heartache as her husband and her child are taken from her and the conquering Normans advance.

Thirteenth-century France. Bridget has grown up mastering the mystical gifts of her ancestor, Mary Magdalene, whose unbroken female lineage has kept a legacy of wisdom alive for a thousand years. But the all-powerful Catholic Church has sworn to destroy Bridget for using her healing talents and supernatural abilities.