Lost lords (Mary Jo Putney)

Battered by the sea, Adam remembers nothing of his past, his ducal rank, nor of the shipwreck that almost claimed his life. But he's delighted to hear that the golden-haired vision tending his wounds is his wife. Mariah's name and face may not be familiar, but her touch, her warmth, feel deliciously right.

When Mariah Clarke prayed for a way to deter a bullying suitor, she didn't imagine she'd find the answer washed ashore on a desolate beach.

...

Medical student and saint-like Daniel Herbert becomes attracted to the Black Widow, Jessie Kelham, but if he recognizes her the demons of her past will surely erupt. Yet they cannot keep apart--and soon they are drawn into a union that may bring joy--or shattering danger.