The Forever Queen — Helen Hollick

Married to a king incompetent both on the throne and in bed, Emma does not love her husband. But she does love England. Even as her husband fails, Emma vows to protect her people-no matter what. For five decades, through love and loss, prosperity and exile, Emma fights for England, becoming the only woman to have been anointed, crowned, and reigning queen to two different kings, the mother of two more, and the great aunt of William the Conqueror.