First published in 1998 this is a study based on dna sequencing that traces the porphyria stain through the genealogical maze of europes royal dynasties to the present day descendants of the houses of hanover and windsor and the consequences it might have had on the history of europe and north america. Purple secret genes madness and the royal houses of europe paperback 3 jun 1999 by john c g rohl author etc author martin warren author david hunt author 1 more 45 out of 5 stars 16 ratings see all formats and editions. Amazonin buy purple secret genes madness and the royal houses of europe book online at best prices in india on amazonin read purple secret genes madness and the royal houses of europe book reviews author details and more at amazonin free delivery on qualified orders. Purple secret genes madness and the royal houses of europe warren martin hunt david rohl john 9780593041482 books amazonca. C2009 2021 bioethics research library box 571212 washington dc 20057 1212 2026873885