A new study by Larmuseau et al. (2013) from Leuven University in Belgium (the same team behind the Brabant Y-DNA Project) tested the Y-DNA of three living members of the House of Bourbon, one descending from Louis XIII of France and two from Philip V of Spain (himself a grandson of Louis XIV). They concluded that all three men share the same STR haplotype and belonged to haplogroup R1b-U106 (Z381* subclade), contradicting the earlier studies that identified the presumed remains of Henry IV and Louis XVI as members of haplogroup G2a. The published mtDNA sequence of Henry IV's presumed head also conflicted with the mtDNA of a series of relatives, bringing additional evidence that the head did not belong to the French monarch.
Note that R1b-Z381 is also the haplogroup of the House of Wettin, which includes the current Belgian royal family, and has included Kings Edward VII, George V, Edward VIII and George VI of the United Kingdom, the Kings of Portugal from 1853 to 1910, the Kings of Bulgaria from 1887 to 1946.
Note that R1b-Z381 is also the haplogroup of the House of Wettin, which includes the current Belgian royal family, and has included Kings Edward VII, George V, Edward VIII and George VI of the United Kingdom, the Kings of Portugal from 1853 to 1910, the Kings of Bulgaria from 1887 to 1946.