An American woman who thought her husband was having an affair has been shocked to find he is actually married to another woman.

Lynn France, from Cleveland Ohio, made the shocking discovery using a simple Facebook according to the Daily Mail.

France, 41, found her husband’s "other" wedding pictures after typing in the name of the woman she suspected he was seeing.

"I was numb with shock, to tell you the truth," she said.

Adding to insult to injury it appeared the pair had been married at Disney World, as Prince Charming, and Sleeping Beauty.

"There was like an album of 200 pictures on there. Their whole wedding."

France had become suspicious when her husband started taking more business trips, even leaving the day the couple's newborn son came home from the hospital.

She once found his passport at home when he was supposed to be in China.

Before leaving for another trip, he left a hotel website up on the couple's computer screen.

France decided to catch her cheating husband out.

"He was there with this girlfriend. I said, 'Hey, I'm his wife. We've got a baby'."

The other woman told her that she was engaged to France's husband.

A friend recommended using Facebook to find out more, where France found further evidence and confronted her husband once more eventually starting divorce proceedings.

France's husband, does not deny that he has remarried he simply insists that he was never married to Lynn in the first place.