Free from Random House (and should be available at that price at all book retailers):
Loving a Lost Lord by Mary Jo Putney
Spoiler:
In the first of a dazzling series, Mary Jo Putney introduces the Lost Lords--maverick childhood friends with a flair for defying convention. Each is about to discover the woman who is his perfect match--but perfection doesn't come easily, even for the noble Duke of Ashton. . .
Battered by the sea, Adam remembers nothing of his past, his ducal rank, nor of the shipwreck that almost claimed his life. However, 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. Convincing Adam that he is her husband is surprisingly easy. Resisting the temptation to act his wife, in every way, will prove anything but. And now a passion begun in fantasy has become dangerously real--and completely irresistible. . .
Against the Wild by Kat Martin