According to Yahoo News dated 1/3/2013 the blood of King Louis XVI and the blood of his paternal Ancestor Henry Iv are a G2a matchhttp://news.yahoo.com/squash-holds-decapitated-King-Louis-xvis-blood-1917...And from my own G2a haplogroup news letter this information dated 1/9/2013http://www.sciencediredt.com/science/article/pii/S079073812005361Melusine