Faithful Heart — Anna Markland

…When all hope seems lost… Destined from childhood to follow his vocation to become a priest, Konrad has lost his faith and no longer believes in God. It's a precarious predicament in a medieval world dominated by the Church. Disillusioned by war, he wanders Europe in search of himself. Seeking redemption through a crusade against slavery, he becomes a pirate with the goal of seizing ships that carry human cargo. Zara is a successful woman of commerce, mistress of a Venetian fleet. Konrad is drawn to her, but her vessels often transport slaves. She will stop at nothing to protect her beloved ships.