We have studied by SEM-EDX some hairs from a lock of hair of the Queen Marie-Antoinette kept in a medallion. These hairs are thin and of ash blond colour. The mtDNA haplogroup of these hairs is a rare sub-clade of H, characterized by mutations 152C, 194T, 263G, and 315.1 C in the HVR2 region of the mtDNA sequence.