An American writer of historical romance novels, she is known for her Viking Haardrad Family Saga Series, as well as for her Malory-Anderson and Wyoming Westerns series. One of the most popular writers in her genre, she published several New York Times bestselling novels.
She published her first novel, Captive Bride, in 1977.
She sold over 58 million copies of her books.
She was the German-born daughter of a U.S. Army officer. With her husband, Ralph Lindsey, she had three children.
She and Michael Palmer have both had books on the New York Times Bestseller list.