His Dutiful Duchess by Hanna Hamilton

“Did you marry me for your son, Your Grace… or for something else entirely?”

Becoming guardian to his late friend’s orphaned son was never part of Alexander’s plans. As the Duke of Leith, he can offer the boy every advantage, except the one thing he truly needs: a mother.
After focusing on raising her sisters, Lydia has earned the reputation of the cursed bride. So marriage is no longer an option. Until the stern, devastatingly handsome duke offers a practical proposal, for the sake of his ward…
Yet, when she enters his house everything changes. He vowed to marry for duty, but every moment with Lydia tempts him to break that vow…and surrender to something far more dangerous…

*If you like a realistic yet charming depiction of the Regency and Victorian era, then His Dutiful Duchess is the novel for you.