Britain's Royal Families is a unique reference book. It provides, for the first time in one volume, complete genealogical details of all members of the royal houses of England, Scotland and Great Britain - from 800 AD to the present. Here is the vital biographical information relating not only to each monarch, but also to every member of their immediate family, from parents to grandchildren. Drawing on countless authorities, both ancient and modern, Alison Weir explores the royal family tree in unprecedented depth and provides a comprehensive guide to the heritage of today's royal family.