Well, what do I mean by that? It's just that most bloodlines are often inspired by differences RL sources. I know it's bad form to base everything of RL stuff, but it is obvious that some inspirations have heavily weighted in most New Eden cultures and bloodlines. It often shows in their racial visual traits as well as their culture overall.
Persian/abrahamic/zoroastrian for Amarr, finnish/modernjapanese for Caldari, mongol/khan for Khanids, Sahara folks for Ni-kunnis, Han/chinese for Jin-mei, traditional/jap for Achura, norse for sebiestor, maori for brutor, etc.
However, i'm at a total loss for the Nefantar. There is a lot of lore on how they betrayed their kin, how they formed the Mandate, and actually like most of the Khanid lore, there is not much on the bloodline itself (not even a bloodline ingame description since they are not playable). Most of the lore is centered around their relationship toward the Amarr. Like the Mannar, we don't know what they look like, except in the nefantar's case maybe that they seem to have pale and white physical traits, or seem to like dying their hair white (or was that just dev actor interpretation that leaded to their ship skins ?). So basically, a lot of stuff around the Mandate and the Minmatar Rebellion, but on the bloodline, only the few hints of their past as a righteous wealthy and aristocratic tribe waging war against their Krusual barbaric neighbors. Like the Starkmanir pretty much, actually: everything we know of them is in relation to the Amarr or something else, but not much on the bloodline itself.
Well I guess i'm asking because it makes them really hard to grasp as a culture and a tribe. We know the mystic atmosphere of shamanic wanderers for the Vherokior and their Sobaki desert, their merchants. We know the giant space caravans of the Thukker, we know the archipelago martial culture of the Brutor, etc. But what kind of RL culture, historical or contemporary, is actually behind the Nefantar ?