This book provides detailed information about descents from the early Kings of England, France, and Scotland for over 250 individuals who emigrated from the British Isles to the North American colonies in the 17th century. It combines research in original documents with the use of published literature and features new ancestral lines for virtually all American colonists who possess royal ancestry, with many corrections to existing lines. It includes known descents, both legitimate and illegitimate, for seventeenth-century colonists from William the Conqueror, King of England (died 1087), Malcolm III Canmore, King of Scotland (died 1093), Hugh Capet, King of France (died 996), the Magna Carta barons, plus numerous other noble and baronial families. An appendix includes several descents from Charlemagne for King William the Conqueror and his wife, Maud of Flanders. The book features hundreds of biographical sketches as well as over 14,000 citations to published materials, making it the most documented source book of its kind. In addition, the book includes a massive 124-page bibliography - probably the most exhaustive listing of royal and noble genealogy ever published - a special study of "king's kinsfolk," and an index of over 25,000 entries.