The Knights Chronicles Series by Angela Elwell Hunt

In this tale of medieval lords and serfs, a peasant girl is taken from her family to be raised as the earl's daughter -- an account of adventure, romance, and struggle to survive desperate times. Beautiful, headstrong Afton is taken from her parents at an early age and raised in the castle, a companion to the Earl's daughter. Schooled in the ways of kings and surrounded by splendor. Afton falls in love with the Earl's son, Calhoun... moreIn this tale of medieval lords and serfs, a peasant girl is taken from her family to be raised as the earl's daughter -- an account of adventure, romance, and struggle to survive desperate times. Beautiful, headstrong Afton is taken from her parents at an early age and raised in the castle, a companion to the Earl's daughter. Schooled in the ways of kings and surrounded by splendor. Afton falls in love with the Earl's son, Calhoun. But Calhoun's mother has much different plans for her son than marriage to a lowborn lady’s companion. When Afton's world is viciously torn apart, she is left with nothing but a burning desire for vengeance. less