Funny bc I don't see ANY lore references just you making claims, or using a single instance in game spoken by a specific bloodline of vampire (volkihar) because its clear according to lore that there are HUNDREDS of bloodlines of vampires scattered across tamriel, is it impossible to consider that ONE of them couldn't have a mixed bloodline and or be true hybrids? I think not sir
it's very possible. lol according to UESP wiki Lamae Beolfag doesn't have a recorded date of birth or "death"..."[edit]Lamae Beolfag (?b - ?d)
Nedic woman and servant of Arkay who was brutally raped by Molag Bal. After being found by her people and cared for, death was said to have took her though some accounts have her actually recovering rapidly but due to the disease spreading throughout her body, her fearful kinsmen decided to purify her through fire. The night she was to be "cremated" she rose from "death" and began slaughtering her people, including the children; she became the first vampire and created more like herself in her rampages. She later earned the title of Blood Matron.[4] Although she was the first vampire, others have received the curse willingly from Molag Bal. Lamae's personality was initially still intact after Molag's attack but became vengeful when Arkay apparently forsook her and did nothing to prevent her being cursed, She renounced Arkay and in order to spite him, begun feeding upon his followers, spreading vampirism across Tamriel. Lamae's fate is unknown though she was active during the time Molag Bal attempted to merge his realm with Nirn."
Also ysgramor doesn't have a direct date associated with him either..."Ysgramor, "the harbinger of us all",[1] was an ancient Atmoran king who came to Tamriel before recorded history as a refugee fleeing civil war in Atmora.[2][3] Some Elven scholars insist Ysgramor was responsible for unspecified "provocations and blasphemies" that led to the genocide known as the Night of Tears, when the human settlement Saarthal was attacked by the Snow Elves and all humans purportedly slain except Ysgramor and his two sons, Yngol and Ylgar,[4] though some scholars believe this attack was unprovoked.[5] Ysgramor fled back to Atmora, gathered the legendary Five Hundred Companions, then sailed back to Hsaarik Head and drove the Elves from Skyrim and Solstheim, cementing himself as a "culture hero" of the Nords.[2][6][7] He wielded the axe Wuuthrad in battle.[8] Since he is the first known human to transcribe Nordic speech using Elven principles of writing, he is credited with being the first human historian.[2] Because of his exploits, he is known as "the first Harbinger, the first Man, [and] the bringer of Words", and the modern-day Companions still revere him as their only true leader.[9] His progeny ruled Skyrim until 1E 369, when the death of King Borgas brought an end to his direct line of known heirs.[5] However, he is still believed to be the wellspring from whom all Nordic kings are descended.[10]"
...and clearly stating that he came to tamriel BEFORE recorded history, given that Lamae and the events that took place between arkay and Molag bal don't have a date set to them according to the lore provided, it could EASILY be inferred that ysgramor and his "legendary" companions could have been vampires, werewolves or both...or had some contact with them in the in between...he's branded in that excerpt for being responsible for unspecified provocation and blasphemies, which the undead (of all kinds) and werewolves alike are considered to be...
Also I'm glad you brought up the possible/closest known hybrid being in elder scrolls online, because you unknowingly are helping me prove my point...due to the events in TESO occurring roughly a thousand years BEFORE the events of skyrim, there is clearly a closer bloodline of possible hybridization between the two...vampires with wolf like traits, no weakness to sunlight and stronger in the moonlight? yeah, who's to say a thousand years before that there wasnt a pure blooded hybrid that had ALL the strengths of both and NONE of the weaknesses? You clearly can't provide ANY lore to prove otherwise...which is why skyrim lore is so fun to debate
there are alot of holes in it and alot of timeline gaps that just simply can't be accounted for...meaning a pure blood hybrid is VERY possible and VERY lore friendly.
so I'm sorry bud, your point is decent, but very linear and doesn't even begin to encompass the vastness of tamrielic history, let alone the specifics in question here, and I honestly don't see how you could read the lore THOROUGHLY and not think a hybrid is possible lol I mean, the game is open to play how you see fit sure, but the possibility of it occurring AND being lore friendly is VERY real lol just hasn't been written in yet
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