The Bishop's Daughter — Karen Woods

When George Keppel, the Earl of Newport, broke off their romance, and married another woman, in 1809, Jane Sommersby was devastated. When his twins were born less than five months after that wedding, Jane swore she'd had a lucky escape; that she had been spared great misery.

Now, it's 1812, and Newport's a widower who is pursuing her, once more. Like Byron, Newport is dangerous to know. At least, he's dangerous to Jane's wounded heart because she has never stopped loving him.