This is an interesting take on a little-studied subject. It encompasses three biographical essays about the central characters of Philippa Gregory's historical fiction series on the Cousins' War, or the Wars of the Roses - Jacquetta of Luxembourg, Elizabeth Woodville and Margaret Beaufort. As the 'star' name among the writers, Philippa Gregory goes first with an introduction and the first essay. However, although most people will buy the book on the basis of Gregory's name being on the cover, her essay on Jacquetta of Luxembourg is by far the weakest. To be honest, she had the hardest task - there are few sources of information about Jaquetta. However, although Gregory claims to have delved into the archives to research for her fiction book, the essay is merely a narrative of the events of the wars with speculative comments interspersed like Jacquetta "probably was" or "was likely to have" been in various places. I'm afraid that such a difficult historical personality probably requires more time and expertise to do her justice - Gregory admits herself that she wrote the essay in this book while juggling the novel at the same time. David Baldwin and Michael Jones are on better ground with their essays, and Jones' on Margaret Beaufort is probably the best at analysing his subject. I'm sure that with a slightly amended structure and approach, this could have been a great book. Unfortunately, it is slightly disappointing as it is.