Relatively heavy Pelasgian blood, according to our racial theory, noting that Linear Ware culture did not extend west of the Rhine, meaning that very little Aesir blood would have made into France. This is consistent with France's inferior Carolignian Cycle, as I previously mentioned:
http://aryanism.net/blog/aryan-sanctuary/reclaiming-our-heroes/one question that often arises is why Hitler had a more favourable cultural view of Britain as compared to France; I believe the answer can be found in their respective lore: whereas the Arthurian Cycle focuses on a quest for an ideal, the Carolignian Cycle is merely an us-vs-them story, and thus thematically barbaric (comparable to the Tanakh). The artistic motivations behind these two cycles are wholly alien to each other, and this is the kind of thing that Hitler would have effortlessly noticed and understood as a choice between mutually exclusive worldviews
Aryan (more likely Saturnian or New Trojan than Aesir) blood was only significant in Occitania, hence Catharism, but Catharism's anti-natalism systematically removed the best bloodlines (the very ones who would have found Catharism most appealing) from the gene pool.