The Wedding Vow — Jill Henry

When the king decreed she marry the powerful knight known as Sir Bran the Fair, Gwyneth of Blackthorne swore she'd never obey her new husband. For how could she forget that he was the son of the blackguard who'd murdered her parents? But as the days passed, and Bran met her defiance with disarming kindness, Gwyneth found it impossible to hate him. Born the bastard son of a ruthless baron, Bran struggled to live a life that was honorable and true..only to find himself shackled to a fiercely stubborn maiden who blamed him for his father's sins. Stung, he vowed he'd teach his unwilling wife that men could be tender as well as strong. Yet when he finally drew her into his passionate embrace, he didn't know that Gwyneth kept a devastating secret--one that could catapult them both into danger--and threaten their newfound love.