Onyx Historical, 1993, ISBN 0-451-40418-1

Lady Elizabeth Ward, about to step inside the church of St. George's, Hanover Square, for her own wedding, is suddenly whisked away by a masked horseman. Some hours later, in an escape attempt, she jumps from a carriage, bangs her head, and wakes up to the sight of the handsome Earl of Trevelyan, who claims to be her husband. She does not recognize him as her kidnapper--she is suffering from amnesia.

Deceived by Mary Balogh