Actually there are different types of immortalities. i'm coming from a place where people are debating fiction all the time and I can also say that they debate this too.
"Types of immortality:
1: Longevity: Characters gifted with this type of immortality cannot die from natural causes, such as old age or conventional illness, but can be killed by unnatural causes.
2: Immortality without regeneration: Characters with this degree of immortality can survive a high degree of physical damage, though they cannot regenerate from it either.
3: Immortality via regeneration: Characters with this type of immortality can simply regenerate damage, though the usefulness of this type depends on the degree of regeneration.
4: Immortality via godhood, or protection from a deity: A character that was either granted immortality by a god, or is immortal because of its hierarchical position due to godhood, so that its divine immortality is less a power, and more treated as a consequence of its state of being as a deity.
5: Perfect Immortality: Complete and utter inability to ever die. This is typically reserved for questionable omnipotents.
6: Parasitic: The person attains a sort of immortality by bodyhopping, transferring their soul to another body.
7: Undead: Self explanatory. The undead generally double up with other types of immortality, often being impossible to kill through conventional means"
There 3 more types of imortalies but I don't think that I need to mention them.
So yeah. The Vampire, Demon and Windigo are technically immortals (Type 1) since they are actually stated to live for centuries before hand (hence they are the most expierienced races in the game). Demons and Vampires have bonus points because they retain their youth.
I don't think that Victoria's mother was a Vampire. I mean, when I tried the Vampire path, they never stated that. In fact, they stated that they were turned into a vampire so it is possible for their mother to be still human.