The King's Jewel by Elizabeth Chadwick

Wales, 1093.

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 honor 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. He is delighted, having always admired her from afar, but Nesta's only comfort is her return to her beloved Wales where cannot help but be tempted by the handsome, charismatic and dangerous son of the Welsh prince, Owain. When he offers her the chance to join him in his plan to overthrow Norman rule she must choose between her duty and her desire . . .