Authors Michael Baigent & Richard Leigh of the book- “Holy Blood, Holy Grail”, are in the midst of a copyright infringement trail with the publisher of “Da Vinci Code”.  They contend that Brown stole 15 central plot points and “appropriated the architecture” from their book.  Brown claims to have done his own research from other sources.  He also states, that his wife did most of the research, that her interest in the ’sacred feminine’ lead to the background material.    See story-USA Today 3/14/06:  www.usatoday.com    -life section